9 Seorang ahli statistik ingin menguji perbezaan antara dua min populasi. Dua sampel telah diambil daripada dua

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9 Seorang ahli statistik ingin menguji perbezaan antara dua min populasi. Dua sampel telah diambil daripada dua populasi yang berbeza. Sampel bersaiz 10 diambil daripada populasi A mempunyai min bernilai 185 dan sisihan piawai bernilai 20. Manakala sampel bersaiz 12 diambil daripada populasi B dengan min ialah 200 dan sisihan piawai ialah 25. Jika varian kedua-dua populasi diandaikan sama, berapakah varian terkumpul (pooled variance)? O A. 21.42 O B. 21.42 O C. 518.10 O D. 22.75 O E. 523.75

Posted Date: Jun 12, 2024 03:11 PM

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9 Seorang ahli statistik ingin menguji perbezaan antara dua min populasi. Dua sampel telah diambil daripada dua

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