The sum of squares for cells is equal to the sum of the sums of squares of A, B, and error.

Question

Quizplus · Accepted Answer

The sum of squares for cells (interaction) is not simply equal to the sum of the sums of squares of A, B, and error. It is part of a larger ANOVA decomposition where the total sum of squares is partitioned into components attributable to different sources of variation, including the main effects (A and B), the interaction effect (AxB), and error, but these components are not additive in the manner described.

The Sum of Squares for Cells Is Equal to the Sum