On a 1 by k chi square with a sample size of 100, the degrees of freedom must always equal
A) 100
B) 99
C) k-1
D) none of these

Question

Quizplus · Accepted Answer

For a 1 by k chi square, we only have one row of data and k columns. Therefore, the degrees of freedom will be k-1. It is not 100 because the sample size only affects the expected frequencies, not the degrees of freedom. It is not 99 because we have k-1 degrees of freedom. Therefore, the correct answer is C.

On a 1 by K Chi Square with a Sample