You wish to test the difference between the means of two paired populations with samples of size 30 each. What is the appropriate value of the degrees of freedom for this test?
A) 29
B) 28
C) 15
D) 14

Question

Quizplus · Accepted Answer

For a paired t-test, the degrees of freedom is calculated as the number of pairs minus one. Since there are 30 pairs, the degrees of freedom is 30 - 1 = 29.

You Wish to Test the Difference Between the Means of Two