2D ANOVA Formulas

Let be the observation at the and levels of A and B respectively, where r= 0,1,...,L – 1.

Let

then

dofab = (a – 1)(b – 1) if L > 1

dofab = 0 if L=1

dofe = ab(L – 1) if L>1

dofe = (a – 1)(b – 1) if L=1