If we use the χ² goodness-of-fit to test for the differences among 4 proportions,the degrees of freedom is equal to: A)3 B)4 C)5 D)None of these choices.

Name: If we use the χ 2 goodness-of-fit to test for the differences among 4 proportions,the degrees of freedom is equal to: A)3 B)4 C)5 D)None of these choices.
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Quizplus · Accepted Answer

The degrees of freedom for a chi-square goodness-of-fit test is calculated as the number of categories minus one. Since there are 4 proportions, the degrees of freedom would be 4 - 1 = 3.

If We Use the χ2 Goodness-Of-Fit to Test for the Differences

If We Use the χ² Goodness-Of-Fit to Test for the Differences