If you use the χ² method of analysis to test for the differences among four proportions,the degrees of freedom are equal to A) 3. B) 1. C) 4. D) 5.

Question

Quizplus · Accepted Answer

The χ² method of analysis is a chi-square test for independence with one degree of freedom. When testing for differences among four proportions, the test is conducted using a contingency table with four rows and two columns, which results in (4-1)x(2-1)=3 degrees of freedom. Therefore, the correct answer is A) 3.

If You Use the χ2 Method of Analysis to Test

If You Use the χ² Method of Analysis to Test