1 The partial slope corresponds to the direct effect in a path diagram 2 The indirect effect of an explanatory variable is the difference between the marginal and partial slopes 3 If we reject H0 1 2 0 using the F test, then we should conclude that both slopes are different from zero 4 If we reject H0 2 0, then we can conclude that the increase in R2 obtained by adding X2 to the regression is statistically significant 5 The main use for a residual plot is finding nonlinear effects in multiple regression 6 A calibration plot summarizes the overall fit of a regression model

Question: 1. The partial slope corresponds to the direct effect in a path diagram. 2. The indirect effect of an explanatory variable is the difference between

1. The partial slope corresponds to the direct effect in a path diagram.
2. The indirect effect of an explanatory variable is the difference between the marginal and partial slopes.
3. If we reject H0: β1 = β2 = 0 using the F-test, then we should conclude that both slopes are different from zero.
4. If we reject H0: β2 = 0, then we can conclude that the increase in R2 obtained by adding X2 to the regression is statistically significant.
5. The main use for a residual plot is finding nonlinear effects in multiple regression.
6. A calibration plot summarizes the overall fit of a regression model.

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