A question has these possible choices-excellent, very good, good, fair and unsatisfactory. How many degrees of freedom are there using the goodness-of-fit test to the sample results?
A) 0
B) 2
C) 4
D) 5

Question

Quizplus · Accepted Answer

The degrees of freedom for a goodness-of-fit test is equal to the number of categories minus one. In this case, there are 5 categories, so the degrees of freedom would be 5-1=4. Therefore, the best choice would be C) 4.

A Question Has These Possible Choices-Excellent, Very Good, Good, Fair