問題詳情
【題組】2). At the .01 significance level, is there a difference in the mean number of times men and women send aTwitter message in a day? What is the value of the test statistic for this hypothesis test?
(A) 2.668
(B) 2.672
(C) 4.80
(D) 2.40
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