If we use the χ² 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.

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Quizplus · Accepted Answer

The degrees of freedom for a chi-square test of independence with (r-1)(c-1) degrees of freedom, where r is the number of rows and c is the number of columns in the contingency table. In this case, we have 4 proportions, so we have 3 rows and 1 column, giving us (3-1)(1-1) = 2 degrees of freedom.

If We Use the χ2 Method of Analysis to Test

If We Use the χ² Method of Analysis to Test