Which of the following correctly describes how to obtain the degrees of freedom for the independent samples t-test?
A) The degrees of freedom are equal to the sum of the sample sizes in both groups.
B) The degrees of freedom are equal to the average of the sample sizes in both groups.
C) The degrees of freedom are equal to the sum of the sample sizes in both groups, minus one.
D) The degrees of freedom are equal to the sum of the sample sizes in both groups, minus 2.
Correct Answer:
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