Question: 20) An interaction term in a multiple regression model may be used when A) neither one of 2 independent variables contribute significantly to the regression

20) An interaction term in a multiple regression model may be used when A) neither one of 2 independent variables contribute significantly to the regression model. B) the coefficient of determination is small. C) there is a curvilinear relationship between the dependent and independent variables. D) the relationship between X1 and Y changes for differing values of X2

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