# Fill in the blanks.a. The cross-product term in a regression equation is often referred to as an______term.b. If two predictor variables x1 and x2 interact, then the change in the conditional mean of y for a change of one unit in x2 (with x1 held xed) depends on_______.c. In a regression model, the cross-product term between x1 and x2 is given by_______.

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Fill in the blanks.
a. The cross-product term in a regression equation is often referred to as an______term.
b. If two predictor variables x1 and x2 interact, then the change in the conditional mean of y for a change of one unit in x2 (with x1 held xed) depends on_______.
c. In a regression model, the cross-product term between x1 and x2 is given by_______.

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Step 1

a)

The interaction between two variables is calculated separately, because the combined effect of the predictors is not always the simple additive effect. The interaction is obtained by finding the cross-product between the variables.

Step 2

Thus, the cross-product term in a regression equation is often referred to as an interaction term.

b)

The combined effect of the predictors is not always the simple additive effect, but is an effect that causes differences in the slope of th...

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