A researcher selects a sample of 80 people and records the frequency of participants choosing a low,moderate,or high calorie dessert in a buffet.What are the degrees of freedom for this chi-square goodness-of-fit test?
A) 2
B) 3
C) 79
D) 80

Question

Quizplus · Accepted Answer

The degrees of freedom for a chi-square goodness-of-fit test are calculated as the number of categories minus one. In this case, there are three categories (low, moderate, or high calorie dessert), so the degrees of freedom are 3 - 1 = 2.

A Researcher Selects a Sample of 80 People and Records