Question: Consider the multiple regression model fi t to the gasoline mileage data in Problem 3.5. a. Construct a normal probability plot of the residuals. Does

Consider the multiple regression model fi t to the gasoline mileage data in Problem 3.5.

a. Construct a normal probability plot of the residuals. Does there seem to be any problem with the normality assumption?

b. Construct and interpret a plot of the residuals versus the predicted response.

c. Construct and interpret the partial regression plots for this model.

d. Compute the studentized residuals and the R - student residuals for this model. What information is conveyed by these scaled residuals?

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