yuqijeffery · 2020年08月16日
问题如下：
Which of the following should be used to test the difference between the variances of two normally distributed populations?
选项：
A.t-test
B.F-test
C.Paired comparisons test
解释：
B is correct.
An F-test is used to conduct tests concerning the difference between the variances of two normally distributed populations with random independent samples.
题干中也没说是不是independent啊？
NO.PZ2017092702000145 问题如下 Whiof the following shouluseto test the fferenbetween the variances of two normally stributepopulations? A.t-test B.F-test C.Pairecomparisons test B is correct.F-test is useto contests concerning the fferenbetween the variances of two normally stributepopulations with ranm inpennt samples.F-test适用于检测两个方差的不同 请问这个知识点是在哪个视频中有说呀？
NO.PZ2017092702000145 如题
abc区别？？？？？？？？？
