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Mathematics, 21.05.2020 15:57 bvghchg2580

لدينا متغير عشوائي طبيعي متوسطة مجهول و تباينه معلوم و يساوي 25 = ه ، و الوسط الحسابي للعينة 22 = X وحجم
العينة 100
اختبر الفرضية أن متوسط المتغير اقل من 20 عند مستوى 0.05

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لدينا متغير عشوائي طبيعي متوسطة مجهول و تباينه معلوم و يساوي 25 = ه ، و الوسط الحسابي للعينة 22 = X...
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