Question: Examine the assumptions. Refer to the previous exercise. We now ask whether the data meet the requirements of the multiple regression model. (a) Find the

Examine the assumptions. Refer to the previous exercise.

We now ask whether the data meet the requirements of the multiple regression model.

(a) Find the residuals and examine their distribution. Summarize what you find.

(b) Plot the residuals versus each of the explanatory variables.

Describe the plots. Does your analysis suggest that the model assumptions may not be reasonable for this problem?

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