为什么不是C选项 compared

问题如下：

Which of the following tests should be used to test the difference between the

variances of two normally distributed populations with random independent

samples?

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.