The number of degrees of freedom in a chi-square goodness-of-fit-test when population parameters are estimated is equal to the number of:
A)categories.
B)categories minus 1.
C)categories minus the number of parameters estimated.
D)categories minus the number of parameters estimated minus 1.

Question

Quizplus · Accepted Answer

The degrees of freedom in a chi-square goodness-of-fit test is calculated as the number of categories minus the number of parameters estimated minus 1. This accounts for the constraints imposed by estimating parameters.

The Number of Degrees of Freedom in a Chi-Square Goodness-Of-Fit-Test