A researcher used a sample of n = 60 individuals to determine whether there are any preferences among four brands of pizza.Each individual tastes all four brands and selects his/her favorite.If the data are evaluated with a chi-square test for goodness of fit using α = .05, then how large does the chi-square statistic need to be to reject the null hypothesis?
A)greater than 7.81.
B)less than 7.81.
C)greater than 79.08.
D)less than 79.08.

Question

Quizplus · Accepted Answer

For a chi-square test for goodness of fit with 3 degrees of freedom (4 brands - 1), the critical value at α = .05 is 7.81. The chi-square statistic must be greater than 7.81 to reject the null hypothesis.

A Researcher Used a Sample of N = 60 Individuals