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Mathematics, 17.08.2021 06:30 sherlock19

Câu 15: Kiểm tra một loại sản phẩm trong kho của xí nghiệp; người ta chọn ngẫu nhiên 100 sản phẩm trong kho thấy có 20 sản phẩm loại I. Với mức ý nghĩa 5% có thể cho rằng tỷ lệ sản phẩm loại I trong kho chiếm 25% không? - Đây là bài taons ước lượng hay kiểm định?
- Tính tần suất mẫu f = ?
- Tính U0,025

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Câu 15: Kiểm tra một loại sản phẩm trong kho của xí nghiệp; người ta chọn ngẫu nhiên 100 sản phẩm tr...
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