For the two-way interaction model, XXXXXXXXXX), show that the following decomposition of sums of squares is true: that is, the total sum of squares is decomposed into that due to row differences, that...

For the two-way interaction model, (9.5.15), show that the following decomposition of sums of squares is true:

that is, the total sum of squares is decomposed into that due to row differences, that due to column differences, that due to interaction, and that within cells.