Refer to the gasoline mileage data in Exercise 11-7. (a) What proportion of total variability in highway

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Refer to the gasoline mileage data in Exercise 11-7.
(a) What proportion of total variability in highway gasoline mileage performance is accounted for by engine displacement?
(b) Plot the residuals versus and x, and comment on the graphs.
(c) Prepare a normal probability plot of the residuals. Does the normality assumption appear to be satisfied?
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Essentials of Business Analytics

ISBN: 978-1285187273

1st edition

Authors: Jeffrey Camm, James Cochran, Michael Fry, Jeffrey Ohlmann, David Anderson, Dennis Sweeney, Thomas Williams

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