In the two-factor ANOVA where a is the number of factor A levels,b is the number of factor B levels,and r is the number of replicates,the number of degrees of freedom for interaction is:
A) (a- 1)(b - 1)
B) abr - 1
C) (a - 1)(r F- 1)
D) n - ab

Question

Quizplus · Accepted Answer

The degrees of freedom for interaction in a two-factor ANOVA is calculated as (a - 1)(b - 1), where a is the number of levels of factor A and b is the number of levels of factor B.

In the Two-Factor ANOVA Where a Is the Number of Factor