To test the difference between two population means by applying the two-sample procedure that uses a pooled estimate of the common variance , the two samples must be independent of each other.

Question

To test the difference between two population means by applying the two-sample procedure that uses a pooled estimate of the common variance  , the two samples must be independent of each other.

Quizplus · Accepted Answer

The assumption of independence is necessary for the two-sample procedure using a pooled estimate of the common variance. The pooled estimate assumes that the two populations have the same variance, and the independence assumption ensures that the samples are not influenced by each other.

To Test the Difference Between Two Population Means by Applying