問題詳情
⑵若控制 V (
) ≤ 1.5 ，使用前述數據找出最少的樣本數與最佳的分層樣本組合(n1 , n 2 ) 並滿足 n = n1 + n2 。（17 分）
) ≤ 1.5 ，使用前述數據找出最少的樣本數與最佳的分層樣本組合(n1 , n 2 ) 並滿足 n = n1 + n2 。（17 分）
參考答案
答案：A
難度：簡單0.835
統計：A(167),B(21),C(9),D(3),E(0)
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