A study compares two levels of Factor A and four levels of Factor B,with four observations in each cell.How large does the F statistic need to be for rejecting the null hypothesis that no interaction is present between the two factors at the 5% significance level?
A)2.33
B)2.78
C)2.92
D)3.01

Question

Quizplus · Accepted Answer

The degrees of freedom for interaction are (2-1)*(4-1)=3, and for error are 2*4*(4-1)=24. Using an F-distribution table, the critical value for F(3,24) at the 5% significance level is approximately 3.01.

A Study Compares Two Levels of Factor a and Four