when interpreting interactions is it necessary to look at the residual mean? when is it necessary to look at residuals when interpreting interactions is it necessary to look at residual means? why is it necessary to look at residual cell means when interpreting interaction effects are residual effects in analyte necessary when interpreting interactions are residuals the same, the residual means when interpreting interaction, is it necessary to look at the residual cell? what is the purpose of residual cell mean in factorial approach when to use residuals for interaction analysis when investigating an interaction is it necessary to look at the residual cell means what is the residual of a interaction mean? when interpreting interaction effects is it necessary to look at residual mean why would you look at residuals and cells when interpreting interaction? when interpreting interactions are residual results necessary which of the following is true about interpreting interaction why is residuals analysis essential why is it necessary to look at residuals when interpreting interactions, is it necessary to look at the residual means? what is meant by residual cell mean