Which of the following values is the number of degrees of freedom associated with the t test when the data are gathered from a matched pairs experiment with 21 pairs?

Name: Which of the following values is the number of degrees of freedom associated with the t test when the data are gathered from a matched pairs experiment with 21 pairs?
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Question

Quizplus · Accepted Answer

In a matched pairs experiment with n pairs, the degrees of freedom for the t-test is n - 1. With 21 pairs, the degrees of freedom is 21 - 1 = 20.

Which of the Following Values Is the Number of Degrees