{"id":953,"date":"2026-10-24T18:00:39","date_gmt":"2026-10-24T18:00:39","guid":{"rendered":"https:\/\/statacademy-eg.com\/blogs\/?p=953"},"modified":"2026-10-24T18:00:39","modified_gmt":"2026-10-24T18:00:39","slug":"%d9%83%d9%8a%d9%81-%d8%aa%d8%ad%d8%b3%d8%a8-%d8%ad%d8%ac%d9%85-%d8%a7%d9%84%d8%b9%d9%8a%d9%86%d8%a9-sample-size-%d9%81%d9%8a-%d8%a7%d9%84%d8%af%d8%b1%d8%a7%d8%b3%d8%a7%d8%aa-%d8%a7%d9%84%d8%b3%d8%b1","status":"publish","type":"post","link":"https:\/\/statacademy-eg.com\/blogs\/%d9%83%d9%8a%d9%81-%d8%aa%d8%ad%d8%b3%d8%a8-%d8%ad%d8%ac%d9%85-%d8%a7%d9%84%d8%b9%d9%8a%d9%86%d8%a9-sample-size-%d9%81%d9%8a-%d8%a7%d9%84%d8%af%d8%b1%d8%a7%d8%b3%d8%a7%d8%aa-%d8%a7%d9%84%d8%b3%d8%b1\/","title":{"rendered":"\u0643\u064a\u0641 \u062a\u062d\u0633\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 (Sample Size) \u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0631\u0629 \u0648\u0627\u0644\u062a\u062c\u0627\u0631\u0628 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\u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0637\u0628\u064a\u0629\u061b \u0625\u0630 \u064a\u062c\u0628 \u062d\u0633\u0627\u0628\u0647 \u0648\u0641\u0642\u064b\u0627 \u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0648\u0647\u062f\u0641\u0647\u0627 \u0627\u0644\u0623\u0633\u0627\u0633\u064a.<\/strong><\/p>\n<h2><strong>\u0645\u0627 \u0623\u0647\u0645\u064a\u0629 \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629\u061f<\/strong><\/h2>\n<p>\u064a\u0633\u0627\u0639\u062f \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0628\u0635\u0648\u0631\u0629 \u0635\u062d\u064a\u062d\u0629 \u0639\u0644\u0649 \u062a\u062d\u0633\u064a\u0646 \u062c\u0648\u062f\u0629 \u0627\u0644\u0628\u062d\u062b \u0627\u0644\u0639\u0644\u0645\u064a \u0648\u062a\u0642\u0644\u064a\u0644 \u0627\u0644\u0623\u062e\u0637\u0627\u0621 \u0641\u064a \u062a\u0641\u0633\u064a\u0631 \u0627\u0644\u0646\u062a\u0627\u0626\u062c.<\/p>\n<p>\u0648\u062a\u062a\u0645\u062b\u0644 \u0623\u0647\u0645\u064a\u062a\u0647 \u0641\u064a \u0627\u0644\u0646\u0642\u0627\u0637 \u0627\u0644\u062a\u0627\u0644\u064a\u0629:<\/p>\n<p><strong>1. \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0644\u0644\u062f\u0631\u0627\u0633\u0629:<\/strong> \u064a\u0633\u0627\u0639\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u062d\u062c\u0645 \u0639\u064a\u0646\u0629 \u0645\u0646\u0627\u0633\u0628 \u0639\u0644\u0649 \u0632\u064a\u0627\u062f\u0629 \u0627\u062d\u062a\u0645\u0627\u0644 \u0627\u0643\u062a\u0634\u0627\u0641 \u0627\u0644\u0641\u0631\u0642 \u0627\u0644\u0630\u064a \u0635\u064f\u0645\u0645\u062a \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0644\u0627\u0643\u062a\u0634\u0627\u0641\u0647\u060c \u0625\u0630\u0627 \u0643\u0627\u0646 \u0647\u0630\u0627 \u0627\u0644\u0641\u0631\u0642 \u0645\u0648\u062c\u0648\u062f\u064b\u0627 \u0641\u0639\u0644\u064b\u0627.<\/p>\n<p><strong>2. \u062a\u062d\u0633\u064a\u0646 \u062f\u0642\u0629 \u0627\u0644\u0646\u062a\u0627\u0626\u062c:<\/strong> \u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u0647\u062f\u0641 \u0625\u0644\u0649 \u062a\u0642\u062f\u064a\u0631 \u0646\u0633\u0628\u0629 \u0623\u0648 \u0645\u062a\u0648\u0633\u0637\u060c \u064a\u0633\u0627\u0639\u062f \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0639\u0644\u0649 \u062a\u0642\u0644\u064a\u0644 \u0647\u0627\u0645\u0634 \u0627\u0644\u062e\u0637\u0623 \u0648\u062a\u0648\u0641\u064a\u0631 \u062a\u0642\u062f\u064a\u0631\u0627\u062a \u0623\u0643\u062b\u0631 \u062f\u0642\u0629.<\/p>\n<p><strong>3. \u062a\u062c\u0646\u0628 \u0627\u0644\u0646\u062a\u0627\u0626\u062c \u0627\u0644\u0633\u0644\u0628\u064a\u0629 \u0627\u0644\u0643\u0627\u0630\u0628\u0629:<\/strong> \u0642\u062f \u062a\u0624\u062f\u064a \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0635\u063a\u064a\u0631\u0629 \u0625\u0644\u0649 \u0639\u062f\u0645 \u0627\u0643\u062a\u0634\u0627\u0641 \u062a\u0623\u062b\u064a\u0631 \u062d\u0642\u064a\u0642\u064a \u0628\u0633\u0628\u0628 \u0627\u0646\u062e\u0641\u0627\u0636 \u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629.<\/p>\n<p><strong>4. \u062a\u0642\u0644\u064a\u0644 \u0647\u062f\u0631 \u0627\u0644\u0645\u0648\u0627\u0631\u062f:<\/strong> \u064a\u0633\u0627\u0639\u062f \u0627\u0644\u062d\u0633\u0627\u0628 \u0627\u0644\u0645\u0633\u0628\u0642 \u0639\u0644\u0649 \u062a\u062c\u0646\u0628 \u062a\u062c\u0646\u064a\u062f \u0639\u062f\u062f \u0623\u0643\u0628\u0631 \u0645\u0646 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0645\u0645\u0627 \u062a\u062a\u0637\u0644\u0628\u0647 \u0623\u0647\u062f\u0627\u0641 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0648\u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a\u0647\u0627.<\/p>\n<p><strong>5. \u062f\u0639\u0645 \u0623\u062e\u0644\u0627\u0642\u064a\u0627\u062a \u0627\u0644\u0628\u062d\u062b \u0627\u0644\u0637\u0628\u064a:<\/strong> \u064a\u0633\u0627\u0647\u0645 \u0627\u0644\u062a\u062e\u0637\u064a\u0637 \u0627\u0644\u062c\u064a\u062f \u0641\u064a \u062a\u062d\u0642\u064a\u0642 \u0627\u0644\u062a\u0648\u0627\u0632\u0646 \u0628\u064a\u0646 \u0627\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u0623\u062f\u0644\u0629 \u0639\u0644\u0645\u064a\u0629 \u0645\u0648\u062b\u0648\u0642\u0629 \u0648\u062a\u0642\u0644\u064a\u0644 \u0627\u0644\u0639\u0628\u0621 \u063a\u064a\u0631 \u0627\u0644\u0636\u0631\u0648\u0631\u064a \u0639\u0644\u0649 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646.<\/p>\n<p><strong>6. \u062a\u0639\u0632\u064a\u0632 \u062c\u0648\u062f\u0629 \u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0643\u0648\u0644 \u0627\u0644\u0628\u062d\u062b\u064a:<\/strong> \u064a\u064f\u0639\u062f \u062a\u0628\u0631\u064a\u0631 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u062c\u0632\u0621\u064b\u0627 \u0645\u0647\u0645\u064b\u0627 \u0645\u0646 \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0648\u0625\u0639\u062f\u0627\u062f \u0628\u0631\u0648\u062a\u0648\u0643\u0648\u0644 \u0627\u0644\u062a\u062c\u0631\u0628\u0629 \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629.<\/p>\n<h2><strong>\u0645\u0627 \u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u062a\u064a \u062a\u0624\u062b\u0631 \u0641\u064a \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629\u061f<\/strong><\/h2>\n<p>\u064a\u062a\u0637\u0644\u0628 \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u062a\u062d\u062f\u064a\u062f \u0645\u062c\u0645\u0648\u0639\u0629 \u0645\u0646 \u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0648\u0627\u0644\u0637\u0628\u064a\u0629 \u0642\u0628\u0644 \u0627\u0644\u0628\u062f\u0621 \u0641\u064a \u0625\u062c\u0631\u0627\u0621 \u0627\u0644\u062d\u0633\u0627\u0628\u0627\u062a.<\/p>\n<h3><strong>1. \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062f\u0644\u0627\u0644\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 (Significance Level)<\/strong><\/h3>\n<p>\u064a\u064f\u0631\u0645\u0632 \u0625\u0644\u0649 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062f\u0644\u0627\u0644\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0628\u0627\u0644\u0631\u0645\u0632 \u03b1\u060c \u0648\u064a\u062d\u062f\u062f \u0627\u0644\u062d\u062f \u0627\u0644\u0630\u064a \u064a\u0633\u062a\u062e\u062f\u0645\u0647 \u0627\u0644\u0628\u0627\u062d\u062b \u0644\u0627\u062a\u062e\u0627\u0630 \u0642\u0631\u0627\u0631 \u0631\u0641\u0636 \u0627\u0644\u0641\u0631\u0636\u064a\u0629 \u0627\u0644\u0635\u0641\u0631\u064a\u0629 \u0648\u0641\u0642\u064b\u0627 \u0644\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0645\u062d\u062f\u062f.<\/p>\n<p>\u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0645\u0633\u062a\u0648\u0649 \u062f\u0644\u0627\u0644\u0629 \u0642\u062f\u0631\u0647 0.05 \u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0637\u0628\u064a\u0629\u060c \u0644\u0643\u0646\u0647 \u0644\u064a\u0633 \u0642\u0627\u0639\u062f\u0629 \u0625\u0644\u0632\u0627\u0645\u064a\u0629 \u0644\u062c\u0645\u064a\u0639 \u0627\u0644\u0623\u0628\u062d\u0627\u062b.<\/p>\n<p>\u0648\u0641\u064a \u0627\u062e\u062a\u0628\u0627\u0631 \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0637\u0631\u0641\u060c \u064a\u0639\u0646\u064a \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u03b1 = 0.05 \u062a\u062e\u0635\u064a\u0635 \u0627\u062d\u062a\u0645\u0627\u0644 \u0625\u062c\u0645\u0627\u0644\u064a \u0642\u062f\u0631\u0647 5% \u0644\u062e\u0637\u0623 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0623\u0648\u0644 \u0648\u0641\u0642\u064b\u0627 \u0644\u0634\u0631\u0648\u0637 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631\u060c \u0639\u0646\u062f\u0645\u0627 \u062a\u0643\u0648\u0646 \u0627\u0644\u0641\u0631\u0636\u064a\u0629 \u0627\u0644\u0635\u0641\u0631\u064a\u0629 \u0635\u062d\u064a\u062d\u0629.<\/p>\n<p>\u0648\u0642\u062f \u064a\u062d\u062a\u0627\u062c \u0627\u0644\u0628\u0627\u062d\u062b \u0625\u0644\u0649 \u0645\u0633\u062a\u0648\u0649 \u062f\u0644\u0627\u0644\u0629 \u0623\u0643\u062b\u0631 \u062a\u062d\u0641\u0638\u064b\u0627 \u0639\u0646\u062f \u0625\u062c\u0631\u0627\u0621 \u0645\u0642\u0627\u0631\u0646\u0627\u062a \u0645\u062a\u0639\u062f\u062f\u0629 \u0623\u0648 \u0641\u064a \u0638\u0631\u0648\u0641 \u0628\u062d\u062b\u064a\u0629 \u0645\u062d\u062f\u062f\u0629.<\/p>\n<h3><strong>2. \u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 (Statistical Power)<\/strong><\/h3>\n<p>\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0647\u064a \u0627\u062d\u062a\u0645\u0627\u0644 \u0627\u0643\u062a\u0634\u0627\u0641 \u0627\u0644\u0641\u0631\u0642 \u0627\u0644\u0645\u0633\u062a\u0647\u062f\u0641 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0647\u0630\u0627 \u0627\u0644\u0641\u0631\u0642 \u0645\u0648\u062c\u0648\u062f\u064b\u0627 \u0628\u0627\u0644\u0641\u0639\u0644 \u0648\u0641\u0642\u064b\u0627 \u0644\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a \u0627\u0644\u0645\u062d\u062f\u062f\u0629 \u0641\u064a \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629.<\/p>\n<p>\u062a\u064f\u062d\u0633\u0628 \u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0646\u062d\u0648 \u0627\u0644\u062a\u0627\u0644\u064a:<\/p>\n<p><strong>\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 = 1 \u2212 \u03b2<\/strong><\/p>\n<p>\u062d\u064a\u062b \u03b2 \u0647\u0648 \u0627\u062d\u062a\u0645\u0627\u0644 \u062e\u0637\u0623 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u062b\u0627\u0646\u064a\u060c \u0623\u064a \u0639\u062f\u0645 \u0631\u0641\u0636 \u0627\u0644\u0641\u0631\u0636\u064a\u0629 \u0627\u0644\u0635\u0641\u0631\u064a\u0629 \u0631\u063a\u0645 \u0648\u062c\u0648\u062f \u062a\u0623\u062b\u064a\u0631 \u0623\u0648 \u0641\u0631\u0642 \u0645\u062d\u062f\u062f \u0641\u064a \u0627\u0644\u0648\u0627\u0642\u0639.<\/p>\n<p>\u062a\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0637\u0628\u064a\u0629 \u0639\u0627\u062f\u0629\u064b \u0642\u0648\u0629 \u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0642\u062f\u0631\u0647\u0627 80% \u0623\u0648 90%\u060c \u0648\u0641\u0642\u064b\u0627 \u0644\u0637\u0628\u064a\u0639\u0629 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0648\u0627\u0644\u0627\u0639\u062a\u0628\u0627\u0631\u0627\u062a \u0627\u0644\u0639\u0644\u0645\u064a\u0629 \u0648\u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629.<\/p>\n<p>\u0648\u062a\u0639\u0646\u064a \u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0627\u0644\u0628\u0627\u0644\u063a\u0629 80% \u0623\u0646 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0644\u062f\u064a\u0647\u0627 \u0627\u062d\u062a\u0645\u0627\u0644 \u0645\u0642\u062f\u0627\u0631\u0647 80% \u0644\u0627\u0643\u062a\u0634\u0627\u0641 \u0627\u0644\u062a\u0623\u062b\u064a\u0631 \u0627\u0644\u0645\u062d\u062f\u062f \u0641\u064a \u0627\u0644\u062d\u0633\u0627\u0628\u060c \u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u0629 \u0635\u062d\u064a\u062d\u0629.<\/p>\n<h3><strong>3. \u062d\u062c\u0645 \u0627\u0644\u0623\u062b\u0631 \u0627\u0644\u0645\u062a\u0648\u0642\u0639 (Effect Size)<\/strong><\/h3>\n<p>\u064a\u0645\u062b\u0644 \u062d\u062c\u0645 \u0627\u0644\u0623\u062b\u0631 \u0645\u0642\u062f\u0627\u0631 \u0627\u0644\u0641\u0631\u0642 \u0627\u0644\u0630\u064a \u064a\u062a\u0648\u0642\u0639 \u0627\u0644\u0628\u0627\u062d\u062b \u0627\u0643\u062a\u0634\u0627\u0641\u0647 \u0623\u0648 \u064a\u0639\u062a\u0628\u0631\u0647 \u0645\u0647\u0645\u064b\u0627 \u0645\u0646 \u0627\u0644\u0646\u0627\u062d\u064a\u0629 \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629.<\/p>\n<p>\u0641\u0641\u064a \u062a\u062c\u0631\u0628\u0629 \u062a\u0642\u0627\u0631\u0646 \u062f\u0648\u0627\u0621\u064b \u062c\u062f\u064a\u062f\u064b\u0627 \u0628\u0627\u0644\u0639\u0644\u0627\u062c \u0627\u0644\u0645\u0639\u062a\u0627\u062f\u060c \u0642\u062f \u064a\u0643\u0648\u0646 \u062d\u062c\u0645 \u0627\u0644\u0623\u062b\u0631 \u0647\u0648 \u0627\u0644\u0641\u0631\u0642 \u0627\u0644\u0645\u062a\u0648\u0642\u0639 \u0628\u064a\u0646 \u0645\u062a\u0648\u0633\u0637\u064a \u0627\u0644\u0642\u064a\u0627\u0633 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0641\u064a \u0627\u0644\u0645\u062c\u0645\u0648\u0639\u062a\u064a\u0646\u060c \u0623\u0648 \u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0646\u0633\u0628 \u0627\u0644\u0627\u0633\u062a\u062c\u0627\u0628\u0629 \u0644\u0644\u0639\u0644\u0627\u062c.<\/p>\n<p>\u0643\u0644\u0645\u0627 \u0643\u0627\u0646 \u0627\u0644\u0641\u0631\u0642 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0627\u0643\u062a\u0634\u0627\u0641\u0647 \u0623\u0635\u063a\u0631\u060c \u0627\u062d\u062a\u0627\u062c\u062a \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0639\u0627\u062f\u0629\u064b \u0625\u0644\u0649 \u0639\u062f\u062f \u0623\u0643\u0628\u0631 \u0645\u0646 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646\u060c \u0645\u0639 \u062b\u0628\u0627\u062a \u0628\u0642\u064a\u0629 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a.<\/p>\n<p>\u0648\u064a\u064f\u0641\u0636\u0644 \u0623\u0646 \u064a\u0633\u062a\u0646\u062f \u062d\u062c\u0645 \u0627\u0644\u0623\u062b\u0631 \u0625\u0644\u0649 \u062f\u0631\u0627\u0633\u0627\u062a \u0633\u0627\u0628\u0642\u0629 \u0645\u0648\u062b\u0648\u0642\u0629 \u0623\u0648 \u0625\u0644\u0649 \u0641\u0631\u0642 \u064a\u064f\u0639\u062f \u0645\u0647\u0645\u064b\u0627 \u0633\u0631\u064a\u0631\u064a\u064b\u0627\u060c \u0648\u0644\u064a\u0633 \u0625\u0644\u0649 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0639\u062a\u0628\u0627\u0637\u064a \u0628\u0647\u062f\u0641 \u0627\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u062d\u062c\u0645 \u0639\u064a\u0646\u0629 \u0635\u063a\u064a\u0631.<\/p>\n<h3><strong>4. \u0627\u0644\u062a\u0628\u0627\u064a\u0646 \u0641\u064a \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a (Variability)<\/strong><\/h3>\n<p>\u064a\u0634\u064a\u0631 \u0627\u0644\u062a\u0628\u0627\u064a\u0646 \u0625\u0644\u0649 \u0645\u062f\u0649 \u0627\u062e\u062a\u0644\u0627\u0641 \u0627\u0644\u0642\u064a\u0627\u0633\u0627\u062a \u0628\u064a\u0646 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646.<\/p>\n<p>\u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u0642\u0627\u0631\u0646 \u0627\u0644\u0645\u062a\u0648\u0633\u0637\u0627\u062a\u060c \u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0627\u0646\u062d\u0631\u0627\u0641 \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a \u0644\u062a\u0642\u062f\u064a\u0631 \u0647\u0630\u0627 \u0627\u0644\u062a\u0628\u0627\u064a\u0646.<\/p>\n<p>\u0648\u0639\u0646\u062f\u0645\u0627 \u064a\u0643\u0648\u0646 \u0627\u0644\u062a\u0628\u0627\u064a\u0646 \u0627\u0644\u0645\u062a\u0648\u0642\u0639 \u0623\u0643\u0628\u0631\u060c \u064a\u062d\u062a\u0627\u062c \u0627\u0644\u0628\u0627\u062d\u062b \u0639\u0627\u062f\u0629\u064b \u0625\u0644\u0649 \u0639\u064a\u0646\u0629 \u0623\u0643\u0628\u0631 \u0644\u0627\u0643\u062a\u0634\u0627\u0641 \u0627\u0644\u0641\u0631\u0642 \u0646\u0641\u0633\u0647 \u0628\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0630\u0627\u062a\u0647\u0627.<\/p>\n<h3><strong>5. \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062f\u0642\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 (Precision)<\/strong><\/h3>\n<p>\u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u0647\u062f\u0641 \u0625\u0644\u0649 \u062a\u0642\u062f\u064a\u0631 \u0645\u062a\u0648\u0633\u0637 \u0623\u0648 \u0646\u0633\u0628\u0629\u060c \u064a\u062d\u062f\u062f \u0627\u0644\u0628\u0627\u062d\u062b \u0647\u0627\u0645\u0634 \u0627\u0644\u062e\u0637\u0623 \u0627\u0644\u0645\u0642\u0628\u0648\u0644 \u062d\u0648\u0644 \u0627\u0644\u062a\u0642\u062f\u064a\u0631.<\/p>\n<p>\u0643\u0644\u0645\u0627 \u0623\u0631\u0627\u062f \u0627\u0644\u0628\u0627\u062d\u062b \u062a\u0642\u062f\u064a\u0631\u064b\u0627 \u0623\u0643\u062b\u0631 \u062f\u0642\u0629\u060c \u0627\u062d\u062a\u0627\u062c \u0639\u0627\u062f\u0629\u064b \u0625\u0644\u0649 \u0639\u064a\u0646\u0629 \u0623\u0643\u0628\u0631.<\/p>\n<h3><strong>6. \u0645\u0639\u062f\u0644 \u0627\u0644\u0627\u0646\u0633\u062d\u0627\u0628 \u0623\u0648 \u0641\u0642\u062f\u0627\u0646 \u0627\u0644\u0645\u062a\u0627\u0628\u0639\u0629<\/strong><\/h3>\n<p>\u0641\u064a \u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629\u060c \u0642\u062f \u064a\u0646\u0633\u062d\u0628 \u0628\u0639\u0636 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0623\u0648 \u0644\u0627 \u064a\u0643\u0645\u0644\u0648\u0646 \u0627\u0644\u0645\u062a\u0627\u0628\u0639\u0629 \u062d\u062a\u0649 \u0646\u0647\u0627\u064a\u0629 \u0627\u0644\u062f\u0631\u0627\u0633\u0629.<\/p>\n<p>\u0644\u0630\u0644\u0643\u060c \u064a\u0646\u0628\u063a\u064a \u0632\u064a\u0627\u062f\u0629 \u0639\u062f\u062f \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0627\u0644\u0630\u064a\u0646 \u0633\u064a\u062c\u0631\u064a \u062a\u062c\u0646\u064a\u062f\u0647\u0645 \u0644\u062a\u0639\u0648\u064a\u0636 \u0627\u0644\u0646\u0633\u0628\u0629 \u0627\u0644\u0645\u062a\u0648\u0642\u0639\u0629 \u0645\u0646 \u0627\u0644\u0641\u0642\u062f\u060c \u0645\u0639 \u0645\u0631\u0627\u0639\u0627\u0629 \u0623\u0646 \u0627\u0644\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629 \u062a\u0639\u062a\u0645\u062f \u0639\u0644\u0649 \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0648\u0637\u0628\u064a\u0639\u0629 \u0627\u0644\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0623\u0633\u0627\u0633\u064a.<\/p>\n<h2><strong>\u0643\u064a\u0641 \u062a\u062d\u0633\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629\u061f<\/strong><\/h2>\n<p>\u062a\u062e\u062a\u0644\u0641 \u0645\u0639\u0627\u062f\u0644\u0629 \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0628\u0627\u062e\u062a\u0644\u0627\u0641 \u0627\u0644\u0647\u062f\u0641 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0644\u0644\u062f\u0631\u0627\u0633\u0629 \u0648\u0646\u0648\u0639 \u0627\u0644\u0645\u062a\u063a\u064a\u0631 \u0648\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0628\u062d\u062b.<\/p>\n<p>\u0644\u0630\u0644\u0643\u060c \u064a\u062c\u0628 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0633\u0624\u0627\u0644 \u0627\u0644\u0628\u062d\u062b\u064a \u0623\u0648\u0644\u064b\u0627\u060c \u062b\u0645 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0623\u0648 \u0627\u0644\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629.<\/p>\n<h3><strong>\u0623\u0648\u0644\u064b\u0627: \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0644\u062a\u0642\u062f\u064a\u0631 \u0646\u0633\u0628\u0629 \u0627\u0646\u062a\u0634\u0627\u0631 \u0645\u0631\u0636<\/strong><\/h3>\n<p>\u0625\u0630\u0627 \u0643\u0627\u0646 \u0627\u0644\u0647\u062f\u0641 \u0647\u0648 \u062a\u0642\u062f\u064a\u0631 \u0646\u0633\u0628\u0629 \u0627\u0646\u062a\u0634\u0627\u0631 \u0645\u0631\u0636 \u0623\u0648 \u062d\u0627\u0644\u0629 \u0635\u062d\u064a\u0629 \u0641\u064a \u0645\u062c\u062a\u0645\u0639 \u0645\u0639\u064a\u0646\u060c \u0641\u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u062a\u0642\u0631\u064a\u0628\u064a\u0629 \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u0639\u0646\u062f \u0627\u0644\u0627\u0639\u062a\u0645\u0627\u062f \u0639\u0644\u0649 \u0639\u064a\u0646\u0629 \u0639\u0634\u0648\u0627\u0626\u064a\u0629 \u0628\u0633\u064a\u0637\u0629 \u0648\u062a\u0642\u062f\u064a\u0631 \u0646\u0633\u0628\u0629 \u0648\u0627\u062d\u062f\u0629:<\/p>\n<p>n = Z\u00b2 \u00d7 p \u00d7 (1 \u2212 p) \/ d\u00b2<\/p>\n<p>\u062d\u064a\u062b:<\/p>\n<ul>\n<li><strong>n:<\/strong> \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628.<\/li>\n<li><strong>Z:<\/strong> \u0627\u0644\u0642\u064a\u0645\u0629 \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a\u0629 \u0627\u0644\u0645\u0631\u062a\u0628\u0637\u0629 \u0628\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062b\u0642\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628.<\/li>\n<li><strong>p:<\/strong> \u0627\u0644\u0646\u0633\u0628\u0629 \u0627\u0644\u0645\u062a\u0648\u0642\u0639\u0629 \u0644\u0627\u0646\u062a\u0634\u0627\u0631 \u0627\u0644\u0645\u0631\u0636.<\/li>\n<li><strong>d:<\/strong> \u0647\u0627\u0645\u0634 \u0627\u0644\u062e\u0637\u0623 \u0627\u0644\u0645\u0637\u0644\u0642 \u0627\u0644\u0645\u0642\u0628\u0648\u0644.<\/li>\n<\/ul>\n<p>\u0639\u0646\u062f \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0633\u062a\u0648\u0649 \u062b\u0642\u0629 95%\u060c \u062a\u0643\u0648\u0646 \u0642\u064a\u0645\u0629 Z \u062a\u0642\u0631\u064a\u0628\u064b\u0627 1.96.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644 \u0639\u0645\u0644\u064a:<\/strong><\/p>\n<p>\u064a\u0631\u064a\u062f \u0628\u0627\u062d\u062b \u062a\u0642\u062f\u064a\u0631 \u0646\u0633\u0628\u0629 \u0627\u0646\u062a\u0634\u0627\u0631 \u062d\u0627\u0644\u0629 \u0635\u062d\u064a\u0629 \u0645\u0639\u064a\u0646\u0629\u060c \u0648\u064a\u062a\u0648\u0642\u0639 \u0623\u0646 \u062a\u0628\u0644\u063a \u0627\u0644\u0646\u0633\u0628\u0629 20%\u060c \u0645\u0639 \u0647\u0627\u0645\u0634 \u062e\u0637\u0623 \u0642\u062f\u0631\u0647 5 \u0646\u0642\u0627\u0637 \u0645\u0626\u0648\u064a\u0629\u060c \u0648\u0645\u0633\u062a\u0648\u0649 \u062b\u0642\u0629 95%.<\/p>\n<p>\u0628\u0627\u0644\u062a\u0639\u0648\u064a\u0636 \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629:<\/p>\n<p>n = (1.96)\u00b2 \u00d7 0.20 \u00d7 (1 \u2212 0.20) \/ (0.05)\u00b2<\/p>\n<p>n \u2248 246<\/p>\n<p>\u0625\u0630\u064b\u0627\u060c \u064a\u062d\u062a\u0627\u062c \u0627\u0644\u0628\u0627\u062d\u062b \u0625\u0644\u0649 \u0646\u062d\u0648 <strong>246 \u0645\u0634\u0627\u0631\u0643\u064b\u0627<\/strong> \u0641\u064a \u0638\u0644 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a \u0627\u0644\u0645\u0630\u0643\u0648\u0631\u0629.<\/p>\n<p>\u0648\u0625\u0630\u0627 \u062a\u0648\u0642\u0639 \u0627\u0644\u0628\u0627\u062d\u062b \u0641\u0642\u062f\u0627\u0646 10% \u0645\u0646 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646\u060c \u0641\u064a\u0645\u0643\u0646 \u062a\u0639\u062f\u064a\u0644 \u0627\u0644\u0639\u062f\u062f \u0643\u0645\u0627 \u064a\u0644\u064a:<\/p>\n<p>n \u0627\u0644\u0645\u0639\u062f\u0644 = n \/ (1 \u2212 \u0646\u0633\u0628\u0629 \u0627\u0644\u0641\u0642\u062f \u0627\u0644\u0645\u062a\u0648\u0642\u0639\u0629)<\/p>\n<p>n \u0627\u0644\u0645\u0639\u062f\u0644 = 246 \/ 0.90<\/p>\n<p>n \u0627\u0644\u0645\u0639\u062f\u0644 \u2248 274<\/p>\n<p>\u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a\u060c \u064a\u0645\u0643\u0646 \u0627\u0644\u062a\u062e\u0637\u064a\u0637 \u0644\u062a\u062c\u0646\u064a\u062f \u0646\u062d\u0648 <strong>274 \u0645\u0634\u0627\u0631\u0643\u064b\u0627<\/strong>.<\/p>\n<p>\u0647\u0630\u0627 \u0627\u0644\u0645\u062b\u0627\u0644 \u062a\u0648\u0636\u064a\u062d\u064a\u060c \u0648\u0642\u062f \u064a\u062a\u063a\u064a\u0631 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0625\u0630\u0627 \u0627\u0633\u062a\u064f\u062e\u062f\u0645\u062a \u0639\u064a\u0646\u0629 \u0639\u0646\u0642\u0648\u062f\u064a\u0629 \u0623\u0648 \u062a\u0635\u0645\u064a\u0645 \u0645\u0639\u0642\u062f \u0623\u0648 \u0623\u064f\u062e\u0630 \u062d\u062c\u0645 \u0627\u0644\u0645\u062c\u062a\u0645\u0639 \u0641\u064a \u0627\u0644\u0627\u0639\u062a\u0628\u0627\u0631 \u0639\u0646\u062f \u0627\u0644\u062d\u0627\u062c\u0629.<\/p>\n<h3><strong>\u062b\u0627\u0646\u064a\u064b\u0627: \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0644\u0645\u0642\u0627\u0631\u0646\u0629 \u0645\u062a\u0648\u0633\u0637\u064a\u0646 \u0628\u064a\u0646 \u0645\u062c\u0645\u0648\u0639\u062a\u064a\u0646 \u0645\u0633\u062a\u0642\u0644\u062a\u064a\u0646<\/strong><\/h3>\n<p>\u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0647\u0630\u0627 \u0627\u0644\u0646\u0648\u0639 \u0645\u0646 \u0627\u0644\u062d\u0633\u0627\u0628\u0627\u062a \u0639\u0646\u062f\u0645\u0627 \u064a\u0631\u063a\u0628 \u0627\u0644\u0628\u0627\u062d\u062b \u0641\u064a \u0645\u0642\u0627\u0631\u0646\u0629 \u0645\u062a\u0648\u0633\u0637 \u0645\u062a\u063a\u064a\u0631 \u0643\u0645\u064a \u0628\u064a\u0646 \u0645\u062c\u0645\u0648\u0639\u062a\u064a\u0646 \u0645\u0633\u062a\u0642\u0644\u062a\u064a\u0646\u060c \u0645\u062b\u0644 \u0645\u0642\u0627\u0631\u0646\u0629 \u0645\u062a\u0648\u0633\u0637 \u0636\u063a\u0637 \u0627\u0644\u062f\u0645 \u0628\u064a\u0646 \u0645\u062c\u0645\u0648\u0639\u0629 \u062a\u062a\u0644\u0642\u0649 \u0639\u0644\u0627\u062c\u064b\u0627 \u062c\u062f\u064a\u062f\u064b\u0627 \u0648\u0645\u062c\u0645\u0648\u0639\u0629 \u062a\u062a\u0644\u0642\u0649 \u0627\u0644\u0639\u0644\u0627\u062c \u0627\u0644\u0645\u0639\u062a\u0627\u062f.<\/p>\n<p>\u0639\u0646\u062f \u0627\u0641\u062a\u0631\u0627\u0636 \u062a\u0633\u0627\u0648\u064a \u0623\u062d\u062c\u0627\u0645 \u0627\u0644\u0645\u062c\u0645\u0648\u0639\u062a\u064a\u0646 \u0648\u062a\u0633\u0627\u0648\u064a \u0627\u0644\u0627\u0646\u062d\u0631\u0627\u0641 \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a \u0628\u064a\u0646\u0647\u0645\u0627\u060c \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u062a\u0642\u0631\u064a\u0628\u064a\u0629 \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u0644\u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0641\u064a \u0643\u0644 \u0645\u062c\u0645\u0648\u0639\u0629:<\/p>\n<p>n = 2 \u00d7 (Z\u03b1\/2 + Z\u03b2)\u00b2 \u00d7 \u03c3\u00b2 \/ \u0394\u00b2<\/p>\n<p>\u062d\u064a\u062b:<\/p>\n<ul>\n<li><strong>n:<\/strong> \u0639\u062f\u062f \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0641\u064a \u0643\u0644 \u0645\u062c\u0645\u0648\u0639\u0629.<\/li>\n<li><strong>Z\u03b1\/2:<\/strong> \u0627\u0644\u0642\u064a\u0645\u0629 \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a\u0629 \u0627\u0644\u0645\u0631\u062a\u0628\u0637\u0629 \u0628\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062f\u0644\u0627\u0644\u0629 \u0641\u064a \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0637\u0631\u0641.<\/li>\n<li><strong>Z\u03b2:<\/strong> \u0627\u0644\u0642\u064a\u0645\u0629 \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a\u0629 \u0627\u0644\u0645\u0631\u062a\u0628\u0637\u0629 \u0628\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629.<\/li>\n<li><strong>\u03c3:<\/strong> \u0627\u0644\u0627\u0646\u062d\u0631\u0627\u0641 \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a \u0627\u0644\u0645\u062a\u0648\u0642\u0639 \u0644\u0644\u0645\u062a\u063a\u064a\u0631.<\/li>\n<li><strong>\u0394:<\/strong> \u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0627\u0644\u0645\u062a\u0648\u0633\u0637\u064a\u0646 \u0627\u0644\u0630\u064a \u064a\u0631\u063a\u0628 \u0627\u0644\u0628\u0627\u062d\u062b \u0641\u064a \u0627\u0643\u062a\u0634\u0627\u0641\u0647.<\/li>\n<\/ul>\n<p><strong>\u0645\u062b\u0627\u0644 \u0639\u0645\u0644\u064a:<\/strong><\/p>\n<p>\u064a\u0631\u064a\u062f \u0628\u0627\u062d\u062b \u0645\u0642\u0627\u0631\u0646\u0629 \u0645\u062a\u0648\u0633\u0637 \u0636\u063a\u0637 \u0627\u0644\u062f\u0645 \u0628\u064a\u0646 \u0645\u062c\u0645\u0648\u0639\u062a\u064a\u0646 \u0645\u0633\u062a\u0642\u0644\u062a\u064a\u0646\u060c \u0645\u0639 \u0627\u0641\u062a\u0631\u0627\u0636 \u0645\u0627 \u064a\u0644\u064a:<\/p>\n<ul>\n<li>\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062f\u0644\u0627\u0644\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629: 0.05.<\/li>\n<li>\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629: 80%.<\/li>\n<li>\u0627\u0644\u0627\u0646\u062d\u0631\u0627\u0641 \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a \u0627\u0644\u0645\u062a\u0648\u0642\u0639: 10 \u0648\u062d\u062f\u0627\u062a.<\/li>\n<li>\u0627\u0644\u0641\u0631\u0642 \u0627\u0644\u0645\u0633\u062a\u0647\u062f\u0641 \u0628\u064a\u0646 \u0627\u0644\u0645\u062a\u0648\u0633\u0637\u064a\u0646: 5 \u0648\u062d\u062f\u0627\u062a.<\/li>\n<li>\u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0637\u0631\u0641.<\/li>\n<li>\u0623\u062d\u062c\u0627\u0645 \u0627\u0644\u0645\u062c\u0645\u0648\u0639\u062a\u064a\u0646 \u0645\u062a\u0633\u0627\u0648\u064a\u0629.<\/li>\n<\/ul>\n<p>\u0639\u0646\u062f \u0647\u0630\u0647 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a:<\/p>\n<p>Z\u03b1\/2 = 1.96<\/p>\n<p>Z\u03b2 \u2248 0.84<\/p>\n<p>\u0628\u0627\u0644\u062a\u0639\u0648\u064a\u0636:<\/p>\n<p>n = 2 \u00d7 (1.96 + 0.84)\u00b2 \u00d7 10\u00b2 \/ 5\u00b2<\/p>\n<p>n \u2248 62.72<\/p>\n<p>\u0648\u0628\u0627\u0644\u062a\u0642\u0631\u064a\u0628 \u0625\u0644\u0649 \u0627\u0644\u0639\u062f\u062f \u0627\u0644\u0635\u062d\u064a\u062d \u0627\u0644\u0623\u0639\u0644\u0649\u060c \u064a\u062d\u062a\u0627\u062c \u0627\u0644\u0628\u0627\u062d\u062b \u0625\u0644\u0649 <strong>63 \u0645\u0634\u0627\u0631\u0643\u064b\u0627 \u0641\u064a \u0643\u0644 \u0645\u062c\u0645\u0648\u0639\u0629<\/strong>\u060c \u0623\u064a 126 \u0645\u0634\u0627\u0631\u0643\u064b\u0627 \u0625\u062c\u0645\u0627\u0644\u064b\u0627\u060c \u0642\u0628\u0644 \u062a\u0639\u062f\u064a\u0644 \u0627\u0644\u0639\u062f\u062f \u0627\u0644\u0645\u062a\u0648\u0642\u0639 \u0644\u0641\u0642\u062f\u0627\u0646 \u0627\u0644\u0645\u062a\u0627\u0628\u0639\u0629.<\/p>\n<p>\u0625\u0630\u0627 \u062a\u0648\u0642\u0639 \u0627\u0644\u0628\u0627\u062d\u062b \u0641\u0642\u062f\u0627\u0646 10% \u0645\u0646 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646\u060c \u0641\u064a\u0645\u0643\u0646 \u062a\u0642\u062f\u064a\u0631 \u0639\u062f\u062f \u0627\u0644\u062a\u062c\u0646\u064a\u062f \u0644\u0643\u0644 \u0645\u062c\u0645\u0648\u0639\u0629 \u0643\u0645\u0627 \u064a\u0644\u064a:<\/p>\n<p>n \u0627\u0644\u0645\u0639\u062f\u0644 = 63 \/ 0.90 \u2248 70<\/p>\n<p>\u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a\u060c \u064a\u0645\u0643\u0646 \u0627\u0644\u062a\u062e\u0637\u064a\u0637 \u0644\u062a\u062c\u0646\u064a\u062f \u0646\u062d\u0648 <strong>70 \u0645\u0634\u0627\u0631\u0643\u064b\u0627 \u0641\u064a \u0643\u0644 \u0645\u062c\u0645\u0648\u0639\u0629<\/strong>\u060c \u0623\u064a 140 \u0645\u0634\u0627\u0631\u0643\u064b\u0627 \u0625\u062c\u0645\u0627\u0644\u064b\u0627.<\/p>\n<p>\u0647\u0630\u0647 \u0645\u0639\u0627\u062f\u0644\u0629 \u062a\u0642\u0631\u064a\u0628\u064a\u0629\u060c \u0648\u0642\u062f \u064a\u062e\u062a\u0644\u0641 \u0627\u0644\u0639\u062f\u062f \u0627\u0644\u0646\u0647\u0627\u0626\u064a \u0639\u0646\u062f \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0637\u0631\u0642 \u062d\u0633\u0627\u0628 \u062f\u0642\u064a\u0642\u0629 \u0623\u0648 \u062a\u0635\u0645\u064a\u0645\u0627\u062a \u0623\u0643\u062b\u0631 \u062a\u0639\u0642\u064a\u062f\u064b\u0627 \u0623\u0648 \u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a \u0645\u062e\u062a\u0644\u0641\u0629.<\/p>\n<h3><strong>\u062b\u0627\u0644\u062b\u064b\u0627: \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0644\u0645\u0642\u0627\u0631\u0646\u0629 \u0646\u0633\u0628\u062a\u064a\u0646<\/strong><\/h3>\n<p>\u0641\u064a \u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u0642\u0627\u0631\u0646 \u0646\u0633\u0628\u0629 \u062d\u062f\u0648\u062b \u0646\u062a\u064a\u062c\u0629 \u0645\u0639\u064a\u0646\u0629 \u0628\u064a\u0646 \u0645\u062c\u0645\u0648\u0639\u062a\u064a\u0646\u060c \u0645\u062b\u0644 \u0646\u0633\u0628\u0629 \u0627\u0644\u0627\u0633\u062a\u062c\u0627\u0628\u0629 \u0644\u0644\u0639\u0644\u0627\u062c \u0623\u0648 \u0646\u0633\u0628\u0629 \u062d\u062f\u0648\u062b \u0645\u0636\u0627\u0639\u0641\u0627\u062a\u060c \u064a\u062c\u0628 \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0627\u0644\u0646\u0633\u0628\u062a\u064a\u0646 \u0627\u0644\u0645\u062a\u0648\u0642\u0639\u0640\u062a\u064a\u0646.<\/p>\n<p>\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0642\u062f \u064a\u0631\u063a\u0628 \u0627\u0644\u0628\u0627\u062d\u062b \u0641\u064a \u0645\u0642\u0627\u0631\u0646\u0629 \u0646\u0633\u0628\u0629 \u0627\u0644\u0627\u0633\u062a\u062c\u0627\u0628\u0629 \u0644\u0639\u0644\u0627\u062c \u062c\u062f\u064a\u062f \u0628\u0646\u0633\u0628\u0629 \u0627\u0644\u0627\u0633\u062a\u062c\u0627\u0628\u0629 \u0644\u0644\u0639\u0644\u0627\u062c \u0627\u0644\u0645\u0639\u062a\u0627\u062f.<\/p>\n<p>\u064a\u0639\u062a\u0645\u062f \u0627\u0644\u062d\u0633\u0627\u0628 \u0639\u0644\u0649 \u0645\u062c\u0645\u0648\u0639\u0629 \u0645\u0646 \u0627\u0644\u0639\u0648\u0627\u0645\u0644\u060c \u0623\u0647\u0645\u0647\u0627:<\/p>\n<ul>\n<li>\u0646\u0633\u0628\u0629 \u0627\u0644\u0627\u0633\u062a\u062c\u0627\u0628\u0629 \u0627\u0644\u0645\u062a\u0648\u0642\u0639\u0629 \u0641\u064a \u0627\u0644\u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u0623\u0648\u0644\u0649.<\/li>\n<li>\u0646\u0633\u0628\u0629 \u0627\u0644\u0627\u0633\u062a\u062c\u0627\u0628\u0629 \u0627\u0644\u0645\u062a\u0648\u0642\u0639\u0629 \u0641\u064a \u0627\u0644\u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629.<\/li>\n<li>\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062f\u0644\u0627\u0644\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629.<\/li>\n<li>\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629.<\/li>\n<li>\u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0631\u0641 \u0623\u0645 \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0637\u0631\u0641.<\/li>\n<li>\u0646\u0633\u0628\u0629 \u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0628\u064a\u0646 \u0627\u0644\u0645\u062c\u0645\u0648\u0639\u062a\u064a\u0646.<\/li>\n<\/ul>\n<p>\u0648\u064a\u064f\u0641\u0636\u0644 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0628\u0631\u0646\u0627\u0645\u062c \u0625\u062d\u0635\u0627\u0626\u064a \u0645\u062a\u062e\u0635\u0635 \u0644\u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0629\u060c \u0644\u0623\u0646 \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062a\u062e\u062a\u0644\u0641 \u0628\u062d\u0633\u0628 \u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0648\u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u0629.<\/p>\n<p>\u0643\u0645\u0627 \u064a\u0646\u0628\u063a\u064a \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0641\u0631\u0642 \u0627\u0644\u0630\u064a \u064a\u064f\u0639\u062f \u0645\u0647\u0645\u064b\u0627 \u0633\u0631\u064a\u0631\u064a\u064b\u0627 \u0642\u0628\u0644 \u0625\u062c\u0631\u0627\u0621 \u0627\u0644\u062d\u0633\u0627\u0628.<\/p>\n<h3><strong>\u0631\u0627\u0628\u0639\u064b\u0627: \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0641\u064a \u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629 \u0627\u0644\u0639\u0634\u0648\u0627\u0626\u064a\u0629<\/strong><\/h3>\n<p>\u0641\u064a \u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629 \u0627\u0644\u0639\u0634\u0648\u0627\u0626\u064a\u0629 (Randomized Controlled Trials)\u060c \u064a\u0639\u062a\u0645\u062f \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0639\u0644\u0649 \u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0627\u0644\u062a\u064a \u0635\u064f\u0645\u0645\u062a \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0644\u062a\u0642\u064a\u064a\u0645\u0647\u0627.<\/p>\n<p>\u0648\u0642\u062f \u062a\u0643\u0648\u0646 \u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0645\u062a\u063a\u064a\u0631\u064b\u0627 \u0643\u0645\u064a\u064b\u0627\u060c \u0645\u062b\u0644 \u0627\u0644\u062a\u063a\u064a\u0631 \u0641\u064a \u0636\u063a\u0637 \u0627\u0644\u062f\u0645\u060c \u0623\u0648 \u0645\u062a\u063a\u064a\u0631\u064b\u0627 \u062b\u0646\u0627\u0626\u064a\u064b\u0627\u060c \u0645\u062b\u0644 \u062d\u062f\u0648\u062b \u0627\u0644\u0645\u0636\u0627\u0639\u0641\u0627\u062a \u0645\u0646 \u0639\u062f\u0645\u0647\u060c \u0623\u0648 \u0645\u062a\u063a\u064a\u0631\u064b\u0627 \u0632\u0645\u0646\u064a\u064b\u0627\u060c \u0645\u062b\u0644 \u0627\u0644\u0648\u0642\u062a \u062d\u062a\u0649 \u062d\u062f\u0648\u062b \u0627\u0644\u0627\u0646\u062a\u0643\u0627\u0633.<\/p>\n<p>\u0648\u062a\u062a\u0636\u0645\u0646 \u0627\u0644\u062e\u0637\u0648\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0645\u0627 \u064a\u0644\u064a:<\/p>\n<ol>\n<li>\u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0647\u062f\u0641 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0644\u0644\u062a\u062c\u0631\u0628\u0629 \u0648\u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629.<\/li>\n<li>\u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0641\u0631\u0642 \u0627\u0644\u0645\u0647\u0645 \u0633\u0631\u064a\u0631\u064a\u064b\u0627 \u0627\u0644\u0630\u064a \u062a\u0647\u062f\u0641 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0625\u0644\u0649 \u0627\u0643\u062a\u0634\u0627\u0641\u0647.<\/li>\n<li>\u062a\u062d\u062f\u064a\u062f \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062f\u0644\u0627\u0644\u0629 \u0648\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629.<\/li>\n<li>\u062a\u0642\u062f\u064a\u0631 \u0627\u0644\u062a\u0628\u0627\u064a\u0646 \u0623\u0648 \u0645\u0639\u062f\u0644 \u062d\u062f\u0648\u062b \u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0627\u0644\u0623\u062f\u0644\u0629 \u0627\u0644\u0633\u0627\u0628\u0642\u0629.<\/li>\n<li>\u062a\u062d\u062f\u064a\u062f \u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629.<\/li>\n<li>\u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0648\u0641\u0642\u064b\u0627 \u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062a\u062c\u0631\u0628\u0629.<\/li>\n<li>\u062a\u0639\u062f\u064a\u0644 \u0627\u0644\u0639\u062f\u062f \u0639\u0646\u062f \u0627\u0644\u062d\u0627\u062c\u0629 \u0644\u062a\u0639\u0648\u064a\u0636 \u0627\u0644\u0627\u0646\u0633\u062d\u0627\u0628 \u0623\u0648 \u0641\u0642\u062f\u0627\u0646 \u0627\u0644\u0645\u062a\u0627\u0628\u0639\u0629.<\/li>\n<\/ol>\n<p>\u0648\u0642\u062f \u064a\u062a\u0637\u0644\u0628 \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0641\u064a \u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u062a\u064a \u062a\u0639\u062a\u0645\u062f \u0639\u0644\u0649 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0623\u0648 \u0627\u0644\u0648\u0642\u062a \u062d\u062a\u0649 \u062d\u062f\u0648\u062b \u062d\u062f\u062b \u0633\u0631\u064a\u0631\u064a \u062a\u0642\u062f\u064a\u0631 \u0639\u062f\u062f \u0627\u0644\u0623\u062d\u062f\u0627\u062b \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629\u060c \u0628\u0627\u0644\u0625\u0636\u0627\u0641\u0629 \u0625\u0644\u0649 \u0639\u062f\u062f \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0648\u0645\u062f\u0629 \u0627\u0644\u0645\u062a\u0627\u0628\u0639\u0629 \u0648\u0645\u0639\u062f\u0644 \u0627\u0644\u062a\u062c\u0646\u064a\u062f \u0627\u0644\u0645\u062a\u0648\u0642\u0639.<\/p>\n<p>\u0644\u0630\u0644\u0643\u060c \u0644\u0627 \u062a\u0648\u062c\u062f \u0645\u0639\u0627\u062f\u0644\u0629 \u0648\u0627\u062d\u062f\u0629 \u062a\u0635\u0644\u062d \u0644\u062c\u0645\u064a\u0639 \u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629.<\/p>\n<h2><strong>\u0643\u064a\u0641 \u062a\u062d\u0633\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0628\u0631\u0627\u0645\u062c \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629\u061f<\/strong><\/h2>\n<p>\u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0639\u062f\u062f \u0645\u0646 \u0627\u0644\u0628\u0631\u0627\u0645\u062c \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0644\u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629\u060c \u0648\u064a\u0639\u062a\u0645\u062f \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0639\u0644\u0649 \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0648\u0646\u0648\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0648\u0627\u0644\u062e\u0628\u0631\u0629 \u0627\u0644\u0645\u062a\u0627\u062d\u0629 \u0644\u062f\u0649 \u0627\u0644\u0628\u0627\u062d\u062b.<\/p>\n<h3><strong>1. \u0628\u0631\u0646\u0627\u0645\u062c G*Power<\/strong><\/h3>\n<p>\u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0628\u0631\u0646\u0627\u0645\u062c G*Power \u0641\u064a \u062d\u0633\u0627\u0628 \u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0648\u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0644\u0639\u062f\u062f \u0645\u0646 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631\u0627\u062a \u0627\u0644\u0634\u0627\u0626\u0639\u0629\u060c \u0645\u062b\u0644 \u0645\u0642\u0627\u0631\u0646\u0629 \u0627\u0644\u0645\u062a\u0648\u0633\u0637\u0627\u062a \u0648\u0627\u0644\u0627\u0631\u062a\u0628\u0627\u0637 \u0648\u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631 \u0648\u0628\u0639\u0636 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631\u0627\u062a \u063a\u064a\u0631 \u0627\u0644\u0645\u0639\u0644\u0645\u064a\u0629.<\/p>\n<p>\u0648\u064a\u062d\u062a\u0627\u062c \u0627\u0644\u0628\u0627\u062d\u062b \u0625\u0644\u0649 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u060c \u0648\u0627\u0644\u0642\u064a\u0645 \u0627\u0644\u0645\u062a\u0648\u0642\u0639\u0629 \u0644\u062d\u062c\u0645 \u0627\u0644\u0623\u062b\u0631\u060c \u0648\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062f\u0644\u0627\u0644\u0629\u060c \u0648\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0627\u0644\u0645\u0633\u062a\u0647\u062f\u0641\u0629.<\/p>\n<h3><strong>2. \u0628\u0631\u0646\u0627\u0645\u062c PASS<\/strong><\/h3>\n<p>\u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0628\u0631\u0646\u0627\u0645\u062c PASS \u0641\u064a \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0648\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0644\u0645\u062c\u0645\u0648\u0639\u0629 \u0648\u0627\u0633\u0639\u0629 \u0645\u0646 \u062a\u0635\u0645\u064a\u0645\u0627\u062a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629 \u0648\u0627\u0644\u0637\u0628\u064a\u0629\u060c \u0628\u0645\u0627 \u0641\u064a \u0630\u0644\u0643 \u0645\u0642\u0627\u0631\u0646\u0629 \u0627\u0644\u0646\u0633\u0628 \u0648\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0648\u062a\u0635\u0645\u064a\u0645\u0627\u062a \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0648\u0639\u062f\u0645 \u0627\u0644\u062f\u0648\u0646\u064a\u0629.<\/p>\n<h3><strong>3. \u0628\u0631\u0646\u0627\u0645\u062c R<\/strong><\/h3>\n<p>\u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0644\u063a\u0629 R \u0648\u0645\u0643\u062a\u0628\u0627\u062a\u0647\u0627 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0641\u064a \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0648\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629\u060c \u0645\u0639 \u0625\u0645\u0643\u0627\u0646\u064a\u0629 \u062a\u062e\u0635\u064a\u0635 \u0627\u0644\u062a\u062d\u0644\u064a\u0644 \u0648\u0641\u0642\u064b\u0627 \u0644\u0637\u0628\u064a\u0639\u0629 \u0627\u0644\u062f\u0631\u0627\u0633\u0629.<\/p>\n<p>\u0648\u064a\u064f\u0639\u062f R \u062e\u064a\u0627\u0631\u064b\u0627 \u0645\u0646\u0627\u0633\u0628\u064b\u0627 \u0644\u0644\u0628\u0627\u062d\u062b\u064a\u0646 \u0627\u0644\u0630\u064a\u0646 \u064a\u062d\u062a\u0627\u062c\u0648\u0646 \u0625\u0644\u0649 \u0645\u0631\u0648\u0646\u0629 \u0641\u064a \u062a\u0646\u0641\u064a\u0630 \u0627\u0644\u062d\u0633\u0627\u0628\u0627\u062a \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0648\u062a\u0648\u062b\u064a\u0642 \u062e\u0637\u0648\u0627\u062a\u0647\u0627.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u0645\u0644\u0627\u062d\u0638\u0629:<\/strong> \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0644\u0627 \u064a\u063a\u0646\u064a \u0639\u0646 \u0641\u0647\u0645 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629\u061b \u0641\u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u064a\u062d\u0633\u0628 \u0627\u0644\u0639\u062f\u062f \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0648\u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a \u0627\u0644\u062a\u064a \u064a\u062f\u062e\u0644\u0647\u0627 \u0627\u0644\u0628\u0627\u062d\u062b\u060c \u0648\u0644\u0627 \u064a\u062d\u062f\u062f \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0627 \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0647\u0630\u0647 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a \u0645\u0646\u0627\u0633\u0628\u0629 \u0639\u0644\u0645\u064a\u064b\u0627.<\/p>\n<h2><strong>\u0643\u064a\u0641 \u062a\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0627\u0644\u0627\u0646\u0633\u062d\u0627\u0628 \u0648\u0641\u0642\u062f\u0627\u0646 \u0627\u0644\u0645\u062a\u0627\u0628\u0639\u0629 \u0639\u0646\u062f \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629\u061f<\/strong><\/h2>\n<p>\u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629\u060c \u0642\u062f \u0644\u0627 \u064a\u0643\u0645\u0644 \u062c\u0645\u064a\u0639 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u062d\u062a\u0649 \u0627\u0644\u0646\u0647\u0627\u064a\u0629\u060c \u0628\u0633\u0628\u0628 \u0627\u0644\u0627\u0646\u0633\u062d\u0627\u0628 \u0623\u0648 \u0641\u0642\u062f\u0627\u0646 \u0627\u0644\u0627\u062a\u0635\u0627\u0644 \u0623\u0648 \u0639\u062f\u0645 \u0627\u0644\u0627\u0644\u062a\u0632\u0627\u0645 \u0628\u0632\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u0645\u062a\u0627\u0628\u0639\u0629.<\/p>\n<p>\u0648\u0644\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0630\u0644\u0643\u060c \u064a\u0645\u0643\u0646 \u0632\u064a\u0627\u062f\u0629 \u0639\u062f\u062f \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0627\u0644\u0630\u064a\u0646 \u064a\u064f\u062e\u0637\u0637 \u0644\u062a\u062c\u0646\u064a\u062f\u0647\u0645.<\/p>\n<p>\u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u0641\u064a \u0627\u0644\u062d\u0627\u0644\u0627\u062a \u0627\u0644\u0628\u0633\u064a\u0637\u0629:<\/p>\n<p>\u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0645\u0639\u062f\u0644 = \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0644\u0644\u062a\u062d\u0644\u064a\u0644 \/ (1 \u2212 \u0646\u0633\u0628\u0629 \u0627\u0644\u0641\u0642\u062f \u0627\u0644\u0645\u062a\u0648\u0642\u0639\u0629)<\/p>\n<p><strong>\u0645\u062b\u0627\u0644:<\/strong><\/p>\n<p>\u0625\u0630\u0627 \u0643\u0627\u0646 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0647\u0648 200 \u0645\u0634\u0627\u0631\u0643\u060c \u0648\u0643\u0627\u0646 \u0645\u0639\u062f\u0644 \u0627\u0644\u0641\u0642\u062f \u0627\u0644\u0645\u062a\u0648\u0642\u0639 15%:<\/p>\n<p>\u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0645\u0639\u062f\u0644 = 200 \/ (1 \u2212 0.15)<\/p>\n<p>\u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0645\u0639\u062f\u0644 = 200 \/ 0.85<\/p>\n<p>\u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0645\u0639\u062f\u0644 \u2248 235.3<\/p>\n<p>\u0648\u0628\u0627\u0644\u062a\u0642\u0631\u064a\u0628 \u0625\u0644\u0649 \u0627\u0644\u0639\u062f\u062f \u0627\u0644\u0635\u062d\u064a\u062d \u0627\u0644\u0623\u0639\u0644\u0649\u060c \u064a\u062d\u062a\u0627\u062c \u0627\u0644\u0628\u0627\u062d\u062b \u0625\u0644\u0649 \u0646\u062d\u0648 <strong>236 \u0645\u0634\u0627\u0631\u0643\u064b\u0627<\/strong>.<\/p>\n<p>\u0648\u0645\u0639 \u0630\u0644\u0643\u060c \u064a\u062c\u0628 \u0627\u0644\u0627\u0646\u062a\u0628\u0627\u0647 \u0625\u0644\u0649 \u0623\u0646 \u0647\u0630\u0647 \u0627\u0644\u0637\u0631\u064a\u0642\u0629 \u062a\u0639\u0648\u0636 \u0627\u0644\u0639\u062f\u062f \u0627\u0644\u0645\u062a\u0648\u0642\u0639 \u0641\u0642\u062f\u0647 \u0628\u0635\u0648\u0631\u0629 \u062a\u0642\u0631\u064a\u0628\u064a\u0629\u060c \u0644\u0643\u0646\u0647\u0627 \u0644\u0627 \u062a\u0639\u0627\u0644\u062c \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0627 \u0627\u0644\u062a\u062d\u064a\u0632 \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0627\u0644\u0627\u0646\u0633\u062d\u0627\u0628 \u0623\u0648 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u0641\u0642\u0648\u062f\u0629. \u0643\u0645\u0627 \u0623\u0646 \u0628\u0639\u0636 \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u062a\u062d\u062a\u0627\u062c \u0625\u0644\u0649 \u0637\u0631\u0642 \u0623\u0643\u062b\u0631 \u062a\u062e\u0635\u0635\u064b\u0627 \u0644\u062a\u062d\u062f\u064a\u062f \u0623\u062b\u0631 \u0641\u0642\u062f\u0627\u0646 \u0627\u0644\u0645\u062a\u0627\u0628\u0639\u0629 \u0639\u0644\u0649 \u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629.<\/p>\n<h2><strong>\u0645\u0627 \u0627\u0644\u0623\u062e\u0637\u0627\u0621 \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0639\u0646\u062f \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0637\u0628\u064a\u0629\u061f<\/strong><\/h2>\n<p>\u0642\u062f \u062a\u0624\u062f\u064a \u0628\u0639\u0636 \u0627\u0644\u0623\u062e\u0637\u0627\u0621 \u0625\u0644\u0649 \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0639\u064a\u0646\u0629 \u063a\u064a\u0631 \u0645\u0646\u0627\u0633\u0628\u060c \u062d\u062a\u0649 \u0639\u0646\u062f \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0628\u0631\u0646\u0627\u0645\u062c \u0625\u062d\u0635\u0627\u0626\u064a \u0645\u062a\u062e\u0635\u0635.<\/p>\n<p><strong>1. \u0627\u062e\u062a\u064a\u0627\u0631 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0628\u0635\u0648\u0631\u0629 \u0639\u0634\u0648\u0627\u0626\u064a\u0629:<\/strong> \u064a\u062c\u0628 \u0623\u0646 \u064a\u0643\u0648\u0646 \u0627\u0644\u0639\u062f\u062f \u0645\u0628\u0631\u0631\u064b\u0627 \u0625\u062d\u0635\u0627\u0626\u064a\u064b\u0627\u060c \u0644\u0627 \u0623\u0646 \u064a\u0639\u062a\u0645\u062f \u0639\u0644\u0649 \u0639\u062f\u062f \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0627\u0644\u0645\u062a\u0627\u062d\u064a\u0646 \u0641\u0642\u0637.<\/p>\n<p><strong>2. \u0639\u062f\u0645 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629:<\/strong> \u064a\u062c\u0628 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0645\u062a\u063a\u064a\u0631 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0627\u0644\u0630\u064a \u0633\u062a\u064f\u0628\u0646\u0649 \u0639\u0644\u064a\u0647 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0642\u0628\u0644 \u0625\u062c\u0631\u0627\u0621 \u0627\u0644\u062d\u0633\u0627\u0628.<\/p>\n<p><strong>3. \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062d\u062c\u0645 \u0623\u062b\u0631 \u063a\u064a\u0631 \u0648\u0627\u0642\u0639\u064a:<\/strong> \u0642\u062f \u064a\u0624\u062f\u064a \u0627\u0641\u062a\u0631\u0627\u0636 \u0641\u0631\u0642 \u0643\u0628\u064a\u0631 \u062f\u0648\u0646 \u0645\u0628\u0631\u0631 \u0639\u0644\u0645\u064a \u0625\u0644\u0649 \u062a\u0642\u0644\u064a\u0644 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0628\u0635\u0648\u0631\u0629 \u063a\u064a\u0631 \u0645\u0646\u0627\u0633\u0628\u0629.<\/p>\n<p><strong>4. \u0627\u0644\u062e\u0644\u0637 \u0628\u064a\u0646 \u0627\u0644\u062f\u0644\u0627\u0644\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0648\u0627\u0644\u0623\u0647\u0645\u064a\u0629 \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629:<\/strong> \u0644\u064a\u0633 \u0643\u0644 \u0641\u0631\u0642 \u062f\u0627\u0644 \u0625\u062d\u0635\u0627\u0626\u064a\u064b\u0627 \u0645\u0647\u0645\u064b\u0627 \u0645\u0646 \u0627\u0644\u0646\u0627\u062d\u064a\u0629 \u0627\u0644\u0637\u0628\u064a\u0629\u060c \u0648\u0627\u0644\u0639\u0643\u0633 \u0635\u062d\u064a\u062d.<\/p>\n<p><strong>5. \u062a\u062c\u0627\u0647\u0644 \u0645\u0639\u062f\u0644 \u0627\u0644\u0627\u0646\u0633\u062d\u0627\u0628:<\/strong> \u0642\u062f \u064a\u0646\u062e\u0641\u0636 \u0639\u062f\u062f \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0627\u0644\u0630\u064a\u0646 \u062a\u062a\u0648\u0627\u0641\u0631 \u0644\u062f\u064a\u0647\u0645 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0644\u0627\u0632\u0645\u0629 \u0644\u0644\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0646\u0647\u0627\u0626\u064a \u0639\u0646 \u0627\u0644\u0639\u062f\u062f \u0627\u0644\u0645\u0637\u0644\u0648\u0628.<\/p>\n<p><strong>6. \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0639\u0627\u062f\u0644\u0629 \u0644\u0627 \u062a\u0646\u0627\u0633\u0628 \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062f\u0631\u0627\u0633\u0629:<\/strong> \u062a\u062e\u062a\u0644\u0641 \u0627\u0644\u062d\u0633\u0627\u0628\u0627\u062a \u0628\u064a\u0646 \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0648\u0635\u0641\u064a\u0629 \u0648\u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u0639\u0634\u0648\u0627\u0626\u064a\u0629 \u0648\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0648\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u062a\u0634\u062e\u064a\u0635.<\/p>\n<p><strong>7. \u0639\u062f\u0645 \u0645\u0631\u0627\u0639\u0627\u0629 \u062a\u0639\u062f\u062f \u0627\u0644\u0645\u0642\u0627\u0631\u0646\u0627\u062a:<\/strong> \u0642\u062f \u062a\u062d\u062a\u0627\u062c \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u062a\u0636\u0645\u0646 \u0639\u062f\u0629 \u0646\u062a\u0627\u0626\u062c \u0623\u0633\u0627\u0633\u064a\u0629 \u0623\u0648 \u0645\u0642\u0627\u0631\u0646\u0627\u062a \u0645\u062a\u0639\u062f\u062f\u0629 \u0625\u0644\u0649 \u062a\u0639\u062f\u064a\u0644\u0627\u062a \u0645\u0646\u0627\u0633\u0628\u0629 \u0639\u0644\u0649 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062f\u0644\u0627\u0644\u0629 \u0623\u0648 \u0625\u0644\u0649 \u062e\u0637\u0629 \u062a\u062d\u0644\u064a\u0644 \u0645\u062d\u062f\u062f\u0629 \u0645\u0633\u0628\u0642\u064b\u0627.<\/p>\n<p><strong>8. \u0639\u062f\u0645 \u062a\u0648\u062b\u064a\u0642 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u0627\u062a:<\/strong> \u064a\u062c\u0628 \u062a\u0648\u0636\u064a\u062d \u0645\u0635\u062f\u0631 \u0627\u0644\u0646\u0633\u0628 \u0623\u0648 \u0627\u0644\u0645\u062a\u0648\u0633\u0637\u0627\u062a \u0623\u0648 \u0627\u0644\u0627\u0646\u062d\u0631\u0627\u0641\u0627\u062a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a\u0629 \u0623\u0648 \u062d\u062c\u0645 \u0627\u0644\u0623\u062b\u0631 \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645 \u0641\u064a \u0627\u0644\u062d\u0633\u0627\u0628\u060c \u062d\u062a\u0649 \u064a\u062a\u0645\u0643\u0646 \u0627\u0644\u0622\u062e\u0631\u0648\u0646 \u0645\u0646 \u062a\u0642\u064a\u064a\u0645 \u0627\u0644\u0645\u0646\u0647\u062c\u064a\u0629.<\/p>\n<h2><strong>\u0643\u064a\u0641 \u062a\u0633\u0627\u0639\u062f\u0643 Stat Academy \u0641\u064a \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0644\u0628\u062d\u062b\u0643 \u0627\u0644\u0637\u0628\u064a\u061f<\/strong><\/h2>\n<p>\u064a\u064f\u0639\u062f \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0645\u0646 \u0627\u0644\u0645\u0631\u0627\u062d\u0644 \u0627\u0644\u062a\u064a \u062a\u062d\u062a\u0627\u062c \u0625\u0644\u0649 \u062f\u0642\u0629 \u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0648\u0641\u0647\u0645 \u0648\u0627\u0636\u062d \u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0628\u062d\u062b \u0648\u0623\u0647\u062f\u0627\u0641\u0647. \u0648\u0642\u062f \u064a\u0648\u0627\u062c\u0647 \u0637\u0644\u0627\u0628 \u0627\u0644\u0645\u0627\u062c\u0633\u062a\u064a\u0631 \u0648\u0627\u0644\u062f\u0643\u062a\u0648\u0631\u0627\u0647 \u0648\u0627\u0644\u0628\u0627\u062d\u062b\u0648\u0646 \u0627\u0644\u0637\u0628\u064a\u0648\u0646 \u0635\u0639\u0648\u0628\u0629 \u0641\u064a \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629 \u0623\u0648 \u0627\u062e\u062a\u064a\u0627\u0631 \u062d\u062c\u0645 \u0627\u0644\u0623\u062b\u0631 \u0623\u0648 \u062a\u0642\u062f\u064a\u0631 \u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629.<\/p>\n<p>\u0648\u0647\u0646\u0627 \u064a\u0623\u062a\u064a \u062f\u0648\u0631 <a href=\"https:\/\/statacademy-eg.com\/\"><strong>Stat Academy<\/strong><\/a> \u0641\u064a \u062f\u0639\u0645 \u0627\u0644\u0628\u0627\u062d\u062b\u064a\u0646 \u0641\u064a \u0645\u062c\u0627\u0644 \u0627\u0644\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u060c \u0648\u0645\u0633\u0627\u0639\u062f\u062a\u0647\u0645 \u0639\u0644\u0649 \u0641\u0647\u0645 \u0627\u0644\u0623\u0633\u0627\u0644\u064a\u0628 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629 \u0644\u0623\u0628\u062d\u0627\u062b\u0647\u0645 \u0648\u0641\u0642\u064b\u0627 \u0644\u0644\u062e\u062f\u0645\u0627\u062a \u0627\u0644\u0645\u062a\u0627\u062d\u0629.<\/p>\n<p>\u064a\u0645\u0643\u0646\u0643 \u0627\u0644\u0627\u0633\u062a\u0641\u0633\u0627\u0631 \u0639\u0646 \u062e\u062f\u0645\u0627\u062a Stat Academy \u0641\u064a \u0627\u0644\u0645\u062c\u0627\u0644\u0627\u062a \u0627\u0644\u062a\u0627\u0644\u064a\u0629:<\/p>\n<ul>\n<li><strong>\u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629:<\/strong> \u062a\u062d\u062f\u064a\u062f \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0648\u0641\u0642\u064b\u0627 \u0644\u0647\u062f\u0641 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0648\u0646\u0648\u0639 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0648\u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a.<\/li>\n<li><strong>\u0625\u0639\u062f\u0627\u062f \u0627\u0644\u062e\u0637\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629:<\/strong> \u0627\u0644\u0645\u0633\u0627\u0639\u062f\u0629 \u0641\u064a \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631\u0627\u062a \u0648\u0627\u0644\u0623\u0633\u0627\u0644\u064a\u0628 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629 \u0644\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a.<\/li>\n<li><strong>\u062a\u062d\u0644\u064a\u0644 \u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0637\u0628\u064a\u0629:<\/strong> \u062f\u0639\u0645 \u0627\u0644\u0628\u0627\u062d\u062b\u064a\u0646 \u0641\u064a \u062a\u0646\u0638\u064a\u0645 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0648\u0625\u062c\u0631\u0627\u0621 \u0627\u0644\u062a\u062d\u0644\u064a\u0644\u0627\u062a \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629.<\/li>\n<li><strong>\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0628\u0631\u0627\u0645\u062c \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629:<\/strong> \u0627\u0644\u0645\u0633\u0627\u0639\u062f\u0629 \u0641\u064a \u0627\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0628\u0631\u0627\u0645\u062c \u0645\u062b\u0644 SPSS \u0648R \u0648\u063a\u064a\u0631\u0647\u0627 \u0648\u0641\u0642\u064b\u0627 \u0644\u0637\u0628\u064a\u0639\u0629 \u0627\u0644\u062a\u062d\u0644\u064a\u0644.<\/li>\n<li><strong>\u062a\u0641\u0633\u064a\u0631 \u0627\u0644\u0646\u062a\u0627\u0626\u062c \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629:<\/strong> \u0641\u0647\u0645 \u0627\u0644\u0646\u062a\u0627\u0626\u062c \u0648\u0631\u0628\u0637\u0647\u0627 \u0628\u0627\u0644\u0641\u0631\u0636\u064a\u0627\u062a \u0648\u0627\u0644\u0623\u0647\u062f\u0627\u0641 \u0627\u0644\u0628\u062d\u062b\u064a\u0629.<\/li>\n<li><strong>\u062f\u0639\u0645 \u0631\u0633\u0627\u0626\u0644 \u0627\u0644\u0645\u0627\u062c\u0633\u062a\u064a\u0631 \u0648\u0627\u0644\u062f\u0643\u062a\u0648\u0631\u0627\u0647:<\/strong> \u0645\u0633\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u0627\u062d\u062b\u064a\u0646 \u0639\u0644\u0649 \u0641\u0647\u0645 \u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0641\u064a \u0645\u0631\u0627\u062d\u0644 \u0625\u0639\u062f\u0627\u062f \u0623\u0628\u062d\u0627\u062b\u0647\u0645.<\/li>\n<\/ul>\n<p><strong>\u0625\u0630\u0627 \u0643\u0646\u062a \u062a\u0633\u062a\u0639\u062f \u0644\u0625\u062c\u0631\u0627\u0621 \u062f\u0631\u0627\u0633\u0629 \u0633\u0631\u064a\u0631\u064a\u0629 \u0623\u0648 \u062a\u0639\u0645\u0644 \u0639\u0644\u0649 \u0631\u0633\u0627\u0644\u0629 \u0645\u0627\u062c\u0633\u062a\u064a\u0631 \u0623\u0648 \u062f\u0643\u062a\u0648\u0631\u0627\u0647 \u0641\u064a \u0627\u0644\u0645\u062c\u0627\u0644 \u0627\u0644\u0637\u0628\u064a\u060c \u064a\u0645\u0643\u0646\u0643 \u0632\u064a\u0627\u0631\u0629 \u0645\u0648\u0642\u0639 Stat Academy \u0639\u0628\u0631 \u0627\u0644\u0631\u0627\u0628\u0637 <a href=\"https:\/\/statacademy-eg.com\/\">https:\/\/statacademy-eg.com\/<\/a> \u0644\u0644\u062a\u0639\u0631\u0641 \u0639\u0644\u0649 \u0627\u0644\u062e\u062f\u0645\u0627\u062a \u0627\u0644\u0645\u062a\u0627\u062d\u0629 \u0648\u0627\u0644\u0627\u0633\u062a\u0641\u0633\u0627\u0631 \u0639\u0646 \u0627\u0644\u0645\u0633\u0627\u0639\u062f\u0629 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629 \u0644\u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0648\u062a\u062d\u0644\u064a\u0644 \u0628\u064a\u0627\u0646\u0627\u062a \u0628\u062d\u062b\u0643.<\/strong><\/p>\n<p><a href=\"https:\/\/statacademy-eg.com\/index-ar#contact\"><b>\u0644\u0644\u062a\u0648\u0627\u0635\u0644 \u0645\u0639 \u0627\u0644\u0627\u0643\u0627\u062f\u064a\u0645\u064a\u0629<\/b><\/a>\u00a0: 01090506617<\/p>\n<p>\u0627\u064a\u0645\u064a\u0644 : info@statacademy-eg.com<\/p>\n<p><a href=\"https:\/\/statacademy-eg.com\/portfolio-ar\"><b>\u0633\u0627\u0628\u0642\u0629 \u0627\u0639\u0645\u0627\u0644 \u0627\u0644\u0627\u0643\u0627\u062f\u064a\u0645\u064a\u0629<\/b><\/a><\/p>\n<h2><strong>\u0627\u0644\u062e\u0644\u0627\u0635\u0629<\/strong><\/h2>\n<p>\u064a\u064f\u0639\u062f \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 (Sample Size) \u062e\u0637\u0648\u0629 \u0623\u0633\u0627\u0633\u064a\u0629 \u0641\u064a \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629 \u0648\u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u0637\u0628\u064a\u0629\u060c \u0644\u0623\u0646\u0647 \u064a\u0633\u0627\u0639\u062f \u0639\u0644\u0649 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0639\u062f\u062f \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0645\u0646 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0644\u062a\u062d\u0642\u064a\u0642 \u0623\u0647\u062f\u0627\u0641 \u0627\u0644\u0628\u062d\u062b \u0628\u062f\u0631\u062c\u0629 \u0645\u0642\u0628\u0648\u0644\u0629 \u0645\u0646 \u0627\u0644\u062f\u0642\u0629 \u0648\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629.<\/p>\n<p>\u0648\u064a\u0639\u062a\u0645\u062f \u0627\u0644\u062d\u0633\u0627\u0628 \u0639\u0644\u0649 \u0639\u0648\u0627\u0645\u0644 \u0645\u062a\u0639\u062f\u062f\u0629\u060c \u0645\u0646\u0647\u0627 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062f\u0644\u0627\u0644\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629\u060c \u0648\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629\u060c \u0648\u062d\u062c\u0645 \u0627\u0644\u0623\u062b\u0631 \u0627\u0644\u0645\u062a\u0648\u0642\u0639\u060c \u0648\u0627\u0644\u062a\u0628\u0627\u064a\u0646 \u0641\u064a \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a\u060c \u0648\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062f\u0631\u0627\u0633\u0629\u060c \u0648\u0645\u0639\u062f\u0644 \u0627\u0644\u0627\u0646\u0633\u062d\u0627\u0628 \u0627\u0644\u0645\u062a\u0648\u0642\u0639.<\/p>\n<p>\u0648\u0644\u0627 \u062a\u0648\u062c\u062f \u0645\u0639\u0627\u062f\u0644\u0629 \u0648\u0627\u062d\u062f\u0629 \u062a\u0646\u0627\u0633\u0628 \u062c\u0645\u064a\u0639 \u0627\u0644\u0623\u0628\u062d\u0627\u062b\u061b \u0644\u0630\u0644\u0643 \u064a\u062c\u0628 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0633\u0624\u0627\u0644 \u0627\u0644\u0628\u062d\u062b\u064a \u0648\u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0648\u0627\u062e\u062a\u064a\u0627\u0631 \u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062d\u0633\u0627\u0628 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629 \u0642\u0628\u0644 \u0628\u062f\u0621 \u062c\u0645\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a.<\/p>\n<p>\u0648\u0625\u0630\u0627 \u0643\u0646\u062a \u0628\u062d\u0627\u062c\u0629 \u0625\u0644\u0649 \u062f\u0639\u0645 \u0641\u064a \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0623\u0648 \u0625\u0639\u062f\u0627\u062f \u0627\u0644\u062e\u0637\u0629 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0644\u0628\u062d\u062b\u0643 \u0627\u0644\u0637\u0628\u064a\u060c \u0641\u0625\u0646 \u0627\u0644\u062a\u0648\u0627\u0635\u0644 \u0645\u0639 \u062c\u0647\u0629 \u0645\u062a\u062e\u0635\u0635\u0629 \u0645\u062b\u0644 <strong>Stat Academy<\/strong> \u0642\u062f \u064a\u0633\u0627\u0639\u062f\u0643 \u0639\u0644\u0649 \u0641\u0647\u0645 \u0627\u0644\u062e\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u0645\u062a\u0627\u062d\u0629 \u0648\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0646\u0647\u062c\u064a\u0629 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629 \u0644\u0623\u0647\u062f\u0627\u0641 \u062f\u0631\u0627\u0633\u062a\u0643.<\/p>\n<p>&nbsp;<\/p>\n<p>\u0627\u0642\u0631\u0623 \u0627\u064a\u0636\u0627 :<\/p>\n<p class=\"post-title mb-3\"><a href=\"https:\/\/statacademy-eg.com\/blogs\/%d8%af%d9%84%d9%8a%d9%84-%d8%a7%d9%84%d8%a8%d8%a7%d8%ad%d8%ab-%d8%a7%d9%84%d8%b4%d8%a7%d9%85%d9%84-%d9%84%d8%a5%d8%b9%d8%af%d8%a7%d8%af-%d8%ae%d8%b7%d8%a9-%d8%a7%d9%84%d8%aa%d8%ad%d9%84%d9%8a%d9%84\/\">\u062f\u0644\u064a\u0644 \u0627\u0644\u0628\u0627\u062d\u062b \u0627\u0644\u0634\u0627\u0645\u0644 \u0644\u0625\u0639\u062f\u0627\u062f \u062e\u0637\u0629 \u0627\u0644\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a (Statistical Plan) \u0642\u0628\u0644 \u062c\u0645\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0643\u064a\u0641 \u062a\u062d\u0633\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 (Sample Size) \u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629 \u0648\u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u0637\u0628\u064a\u0629\u061f \u064a\u064f\u0639\u062f \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 (Sample Size) \u0645\u0646 \u0627\u0644\u062e\u0637\u0648\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0641\u064a \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629 \u0648\u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u0637\u0628\u064a\u0629\u060c \u0644\u0623\u0646\u0647 \u064a\u0624\u062b\u0631 \u0641\u064a \u0642\u062f\u0631\u0629 \u0627\u0644\u0628\u0627\u062d\u062b \u0639\u0644\u0649 \u0627\u0643\u062a\u0634\u0627\u0641 \u0627\u0644\u0641\u0631\u0648\u0642 \u0627\u0644\u062d\u0642\u064a\u0642\u064a\u0629 \u0628\u064a\u0646 \u0627\u0644\u0645\u062c\u0645\u0648\u0639\u0627\u062a\u060c \u0648\u062f\u0642\u0629 \u062a\u0642\u062f\u064a\u0631 \u0627\u0644\u0646\u062a\u0627\u0626\u062c\u060c \u0648\u0645\u062f\u0649 \u0645\u0648\u062b\u0648\u0642\u064a\u0629 \u0627\u0644\u0627\u0633\u062a\u0646\u062a\u0627\u062c\u0627\u062a \u0627\u0644\u0639\u0644\u0645\u064a\u0629. \u0641\u0627\u062e\u062a\u064a\u0627\u0631 \u0639\u062f\u062f \u0642\u0644\u064a\u0644 \u062c\u062f\u064b\u0627 \u0645\u0646 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u064a\u0646 \u0642\u062f \u064a\u0624\u062f\u064a \u0625\u0644\u0649 \u0639\u062f\u0645 \u0627\u0643\u062a\u0634\u0627\u0641 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":954,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[203],"class_list":["post-953","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1","tag-----sample-size---"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u0643\u064a\u0641 \u062a\u062d\u0633\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 (Sample Size) \u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0631\u0629 \u0648\u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u0637\u0628\u064a\u0629\u061f - Stat Academy<\/title>\n<meta name=\"description\" content=\"\u062a\u0639\u0631\u0641 \u0639\u0644\u0649 \u0643\u064a\u0641\u064a\u0629 \u062d\u0633\u0627\u0628 \u062d\u062c\u0645 \u0627\u0644\u0639\u064a\u0646\u0629 \u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0631\u064a\u0629 \u0648\u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0627\u0644\u0637\u0628\u064a\u0629\u060c \u0648\u0623\u0647\u0645 \u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0645\u0624\u062b\u0631\u0629 \u0641\u064a\u0647\u060c \u0648\u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629\u060c \u0648\u0628\u0631\u0627\u0645\u062c \u062d\u0633\u0627\u0628 Sample Size.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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