問題詳情

7. A recent study focused on the number of times men and women send a Twitter message in a day. Theinformation is summarized below.(9 分)


【題組】1). At the .01 significance level, is there a difference in the mean number of times men and women in a day?What is the test statistic for this hypothesis?
(A) z-statistic
(B) t-statistic
(C) p-statistic
(D) df-statistic

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