For N = 20, the degrees of freedom for the test of the significance of the correlation coefficient ( r ) is _________.
A) 20
B) 21
C) 19
D) 18

Name: For N = 20, the degrees of freedom for the test of the significance of the correlation coefficient ( r ) is _________. A) 20 B) 21 C) 19 D) 18
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Question

Quizplus · Accepted Answer

The degrees of freedom for the test of the significance of the correlation coefficient ( r ) is N - 2, where N is the sample size. Therefore, for N = 20, the degrees of freedom is 20 - 2 = 18.

For N = 20, the Degrees of Freedom for the Test