We wish to test the hypothesis of no difference between the means of two independent samples. The first sample consists of 30 cases and the second consists of 20 cases. The number of degrees of freedom for the test is
A) 25
B) 48
C) 49
D) 50

Question

Quizplus · Accepted Answer

The degrees of freedom for a two-sample t-test is calculated as (n1 - 1) + (n2 - 1), which is (30 - 1) + (20 - 1) = 48.

We Wish to Test the Hypothesis of No Difference Between