The chi-square test for independence uses the same formula as the chi-square statistic for the goodness-of-fit test.

Question

Quizplus · Accepted Answer

Both the chi-square test for independence and the chi-square goodness-of-fit test calculate the chi-square statistic using the formula that involves summing the squared difference between observed and expected frequencies, divided by the expected frequencies. The difference lies in the application and interpretation of the test, not in the calculation of the chi-square statistic itself.

The Chi-Square Test for Independence Uses the Same Formula as the Chi-Square