A regression of the calories in breakfast cereals on their carbohydrate content (g) looks like this: A

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A regression of the calories in breakfast cereals on their carbohydrate content (g) looks like this:

A second regression with fiber content included gives this model: A second regression with fiber content included gives this model:

a) Give an interpretation of the coefficient of carbo in both regressions.
b) Why did the P-value on carbo change from 0.0267 in the first regression to 0.1661 in the second regression?
c) What statistics or graphs would you look at to understand this change?

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Intro Stats

ISBN: 9780134668420

5th Edition

Authors: Richard D De Veaux, Paul F Velleman, David E Bock, Nick Horton

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