Use arsenic in nails as the response and age, drink use, and cook use as the regressors.

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

(b) Construct a normal probability plot of the residuals. What conclusion can you draw from this plot?

(c) Plot the residuals versus and versus each regressor, and comment on model adequacy.

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

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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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Use arsenic in nails as the response and age, drink use, and cook use as the regressors.

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Applied Statistics And Probability For Engineers

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