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Mathematics, 28.07.2021 06:50 jfkdhrmd

27TÍNH Zt DÙNG ĐỂ KIỂM ĐỊNH BÀI TOÁN SAU. Điều tra một mẫu ngẫu nhiên gồm 600 học sinh lớp 12 các vùng nông thôn khu vực phía Bắc người ta thấy có 123 học sinh nói sẽ nộp đơn vào Học viện Nông nghiệp Việt Nam.

Điều tra một mẫu ngẫu nhiên khác gồm 500 học sinh lớp 12 các khu vực miền núi phía Bắc thấy có 85 học sinh nói sẽ nộp đơn vào Học viện Nông nghiệp Việt Nam.

Với mức ý nghĩa 0,05, có thể cho rằng tỷ lệ học sinh lớp 12 nộp đơn vào Học viện Nông nghiệp Việt Nam ở khu vực nông thôn cao hơn khu vực miền núi hay không?

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27TÍNH Zt DÙNG ĐỂ KIỂM ĐỊNH BÀI TOÁN SAU. Điều tra một mẫu ngẫu nhiên gồm 600 học sinh lớp 12 các v...

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