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Mathematics, 25.10.2021 15:00 enca2619
Sử dụng mẫu có 42 quan sát, trung bình mẫu là 22.05 ; phương sai mẫu là 1.38, độ tin cậy 95%, giá trị tối đa của trung bình tổng thể là bao nhiêu, lấy U0,05 =1.645 có giá trị gần giá trị nào nhất trong các giá trị sau
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Sử dụng mẫu có 42 quan sát, trung bình mẫu là 22.05 ; phương sai mẫu là 1.38, độ tin cậy 95%, giá tr...
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