INTRO. STATISTICAL QUALITY CONTROL
13th Edition
ISBN: 9781118909447
Author: Montgomery
Publisher: WILEY
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Textbook Question
Chapter 4, Problem 51E
Reconsider the patient satisfaction data in Table 4E.11. Fit a multiple regression model using both patient age and severity as the regressors.
- (a) Test for significance of regression.
- (b) Test for the individual contribution of the two regressors. Are both regressor variables needed in the model?
- (c) Has adding severity to the model improved the quality of the model fit? Explain your answer.
TABLE 4E.11
Patient Satisfaction Data
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Chapter 4 Solutions
INTRO. STATISTICAL QUALITY CONTROL
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