When comparing two group means,the _____ refers to the number of scores free to vary once the means are known.
A) null hypothesis
B) research hypothesis
C) statistical significance
D) degrees of freedom

Question

Quizplus · Accepted Answer

Degrees of freedom refers to the number of scores free to vary once the means are known. It is important in calculating statistical tests, such as t-tests and ANOVA, to determine the probability of obtaining the observed results by chance. The formula for degrees of freedom varies depending on the specific statistical test being used.

When Comparing Two Group Means,the _____ Refers to the Number