Question: In Problem 3.9, you were asked to fi t a model to the tube - fl ow reactor data in Table B.6 . a. Construct

In Problem 3.9, you were asked to fi t a model to the tube - fl ow reactor data in Table B.6 .

a. Construct a normal probability plot of the residuals. 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. Construct the partial regression plots for this model. Does it seem that some variables currently in the model are not necessary?

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