Produce a plot of the residuals against each of predictors

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See if you can improve on the regression model of ln MPG on ln HP and weight. Do you see some curvature in the residuals versus fitted values plot? Produce a plot of the residuals against each of the predictors. Any curvature? Add a quadratic term of one of the predictors (e.g., weight2 ) to the model, and see if this helps.

Reference no: EM131379039

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