問題詳情
8. The proportion of junior executives leaving large manufacturing companies within three years is to beestimated within 3 percent. The 0.95 degree of confidence is to be used. A study conducted severalyears ago revealed that the percent of junior executives leaving within three years was 21.To update this study, the files of how many junior executives should be studied?
(A) 594
(B)612
(C) 709
(D) 897
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增