In general,the Welch-Satterthwaite t-test for two means has the same degrees of freedom as the pooled samples t-test for two means.

Question

Quizplus · Accepted Answer

The pooled samples t-test assumes that the variances of the two populations are equal, while the Welch-Satterthwaite t-test allows for unequal variances. Therefore, the Welch-Satterthwaite t-test typically has fewer degrees of freedom than the pooled samples t-test, making it more conservative.

In General,the Welch-Satterthwaite T-Test for Two Means Has the Same