A sample of n = 100 people is classified into four categories.If the results are evaluated with a chi-square test for goodness of fit,what is the df value for the chi-square statistic?
A)3
B)4
C)99
D)100

Question

A sample of n = 100 people is classified into four categories.If the results are evaluated with a chi-square test for goodness of fit,what is the df value for the chi-square statistic?​
A)​3
B)​4
C)​99
D)​100

Quizplus · Accepted Answer

The degrees of freedom (df) for a chi-square test for goodness of fit is calculated as the number of categories minus one. Therefore, with four categories, df = 4 - 1 = 3.

A Sample of N = 100 People Is Classified into Four