Practice of Statistics in the Life Sciences
Practice of Statistics in the Life Sciences
4th Edition
ISBN: 9781319013370
Author: Brigitte Baldi, David S. Moore
Publisher: W. H. Freeman
Question
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Chapter 28, Problem 28.11AYK

(a)

To determine

To plot arterial stiffness versus sympathetic nerve activity using different symbols for men and women and explain does a multiple regression model with parallel slopes for men and women make sense.

(b)

To determine

To create a new variable representing the interaction x1x2 between the two explanatory variables and what do you conclude.

(c)

To determine

To explain are the conditions for inference met for your model in part (b) and construct appropriate residual plots and comment.

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