If we use the X² method of analysis to test for the differences among 4 proportions, the degrees of freedom are equal to
A) 3.
B) 4.
C) 5.
D) 1.

Question

Quizplus · Accepted Answer

The degrees of freedom for the X² test for the differences among 4 proportions is 3. This is because the test compares the observed proportions to the expected proportions, and the expected proportions are calculated based on the assumption that the proportions are equal. Therefore, the degrees of freedom are equal to the number of proportions minus 1.

If We Use the X² Method of Analysis to Test