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
E) None of these statements are correct

Question

Quizplus · Accepted Answer

The goodness-of-fit test has (k-1) degrees of freedom, where k is the number of categories. In this case, there are 5 categories, so there are (5-1) = 4 degrees of freedom.

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