The data from a patient satisfaction survey in a hospital are in Table E12-1. The regressor variables
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The regressor variables are the patients age, an illness severity index (higher values indicate greater severity), an indicator variable denoting whether the patient is a medical patient (0) or a surgical patient (1), and an anxiety index (higher values indicate greater anxiety).
(a) Fit a multiple linear regression model to the satisfaction response using age, illness severity, and the anxiety index as the regressors.
(b) Estimate Ï2.
(c) Find the standard errors of the regression coefficients.
(d) Are all of the model parameters estimated with nearly the same precision? Why or why not?
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Related Book For
Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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