Two samples of sizes 15 and 20 are randomly and independently selected from two normally distributed populations, where the unknown population variances are assumed to be equal. The number of degrees of freedom associated with the two-sample t-test is equal to 35.

Question

Quizplus · Accepted Answer

The correct number of degrees of freedom for the two-sample t-test with equal variances is (n1 + n2 - 2), which in this case would be (15 + 20 - 2) = 33.

Two Samples of Sizes 15 and 20 Are Randomly and Independently