The sample size in each independent sample must be the same if we are to test for differences between the means of two independent populations.

Question

Quizplus · Accepted Answer

The sample sizes in each independent sample do not need to be the same to test for differences between the means of two independent populations. Statistical tests, such as the independent samples t-test, can accommodate different sample sizes, although equal sizes may increase the power of the test.

The Sample Size in Each Independent Sample Must Be the Same