Consider the gasoline mileage data in Exercise 12-7. (a) What proportion of total variability is explained by

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Consider the gasoline mileage data in Exercise 12-7.

(a) What proportion of total variability is explained by this model?

(b) Construct a normal probability plot of the residuals and comment on the normality assumption.

(c) Plot residuals versus and versus each regressor. Discuss these residual plots.

(d) Calculate Cook’s distance for the observations in this data set. Are any observations influential?

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Applied Statistics And Probability For Engineers

ISBN: 9780470053041

5th Edition

Authors: Douglas C. Montgomery, George C. Runger

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Question Posted: Nov 07, 2024 07:00 AM

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Consider the gasoline mileage data in Exercise 12-7. (a) What proportion of total variability is explained by

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Applied Statistics And Probability For Engineers

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