Question: In problem 12.8 on page 467, you used alcohol content to predict wine quality. Perform a residual analysis for these data. Based on these results:

In problem 12.8 on page 467, you used alcohol content to predict wine quality. Perform a residual analysis for these data. Based on these results:

a. Determine the adequacy of the fit of the model.

b. Evaluate whether the assumptions of regression have been seriously violated.

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