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Mathematics, 08.08.2021 19:20 izzyisawesome5232
Một bác sĩ muốn ước tính chỉ số BMI (chỉ số khối cơ thể) trung bình cho bệnh nhân trưởng thành của mình. Biết rằng độ lệch chuẩn tổng thể về BMI của những bệnh nhân trưởng thành là 4.5 đơn vị BMI. Muốn ước lượng BMI trung bình với sais số 1.5 và độ tin cậy 95% thì cần một cỡ mẫu tối thiểu là bao nhiêu?
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Một bác sĩ muốn ước tính chỉ số BMI (chỉ số khối cơ thể) trung bình cho bệnh nhân trưởng thành của m...
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