Which of the following statements is true for chi-squared tests?
A)Testing for equal proportions is identical to testing for goodness-of-fit.
B)The number of degrees of freedom in a test of a contingency table with r rows and c columns is (r − 1)(c − 1).
C)The number of degrees of freedom in a goodness-of-fit test with k categories is k − 1.
D)All of these choices are true.

Question

Quizplus · Accepted Answer

A) Testing for equal proportions is identical to testing for goodness-of-fit, as both involve comparing observed and expected frequencies.
B) The number of degrees of freedom in a test of a contingency table with r rows and c columns is (r − 1)(c − 1).
C) The number of degrees of freedom in a goodness-of-fit test with k categories is k − 1. 
Therefore, all of these statements are true for chi-squared tests.

Which of the Following Statements Is True for Chi-Squared Tests