Question: 47. Interaction tenns are needed in a two-way ANOVA model when a) Each pain of variables is associated. b) Both explanatory variables have significant effects

47. Interaction tenns are needed in a two-way ANOVA model when

a) Each pain of variables is associated.

b) Both explanatory variables have significant effects in the model without interaction terms

c) The difference in means between two categories of one explanatory variable varics greatly among the categones of the other explanatory variable.

d) The mean square for interaction is huge compared to the mean square error.

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