If we are testing for the difference between the means of two paired populations with samples of n₁ = 20 and n₂ = 20,the number of degrees of freedom is equal to: A)39 B)38 C)19 D)18

Question

Quizplus · Accepted Answer

The number of degrees of freedom for paired t-test can be calculated as (n-1), where n is the number of pairs. Here, we have 20 pairs in each sample, therefore the degrees of freedom would be (20-1) = 19. Hence, the correct answer is option C.

If We Are Testing for the Difference Between the Means