A variable contains four categories.It is expected that data are uniformly distributed across these four categories.To test this, a sample of observed data is gathered on this variable resulting in frequencies of 22, 35, 32, and 21.Using $\alpha$= .05, the critical chi-square value is ___.
A)13.277
B)15.086
C)7.8147
D)11.070
E)15.546

Question

Quizplus · Accepted Answer

The degrees of freedom for the chi-square test is the number of categories minus one, which is 3. At $\alpha$ = 0.05 and 3 degrees of freedom, the critical chi-square value is 7.8147.

A Variable Contains Four Categories α\alphaα = 05, the Critical Chi-Square Value Is ___

A Variable Contains Four Categories $\alpha$ = 05, the Critical Chi-Square Value Is ___