In Problem 3.12, you were asked to fit a model to the clathrate formation data in Table

Question:

In Problem 3.12, you were asked to fit a model to the clathrate formation data in Table B.8.


Problem 3.12

A chemical engineer studied the effect of the amount of surfactant and time on clathrate formation. Clathrates are used as cool storage media. Table B. 8 summarizes the experimental results.

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a. Construct a normality plot of the residuals from the full model. Does there seem to be any problem with the normality assumption?

b. Construct and interpret a plot of the residuals versus the predicted response.

c. In Problem 3.12, you were asked to fit a second model. Compute the PRESS statistic for both models. Based on this statistic, which model is most likely to provide better predictions of new data?

Step by Step Answer:

Related Book For  book-img-for-question

Introduction To Linear Regression Analysis

ISBN: 9781119578727

6th Edition

Authors: Douglas C. Montgomery, Elizabeth A. Peck, G. Geoffrey Vining

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