The number of degrees of freedom associated with the t-test, when the data are gathered from a matched pairs experiment with 40 pairs, is:
A)38.
B)39.
C)1.
D)2.

Name: The number of degrees of freedom associated with the t-test, when the data are gathered from a matched pairs experiment with 40 pairs, is: A)38. B)39. C)1. D)2.
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Quizplus · Accepted Answer

In a matched pairs t-test, the degrees of freedom are calculated as the number of pairs minus one. Therefore, with 40 pairs, the degrees of freedom are 40 - 1 = 39.

The Number of Degrees of Freedom Associated with the T-Test