Intro Stats, Books a la carte Plus NEW MyLab Statistics with Pearson eText -- Access Card Package (5th Edition)
5th Edition
ISBN: 9780134210247
Author: Richard D. De Veaux, Paul Velleman, David E. Bock
Publisher: PEARSON
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Chapter 20, Problem 40E
Fuel economy A consumer organization has reported test data for 50 car models. We will examine the association between the weight of the car (in thousands of pounds) and the fuel efficiency (in miles per gallon). Here are the
Dependent variable is MPG
R-squared = 75.6%
s = 2.413 with 50 – 2 = 48 df
- a) Is there strong evidence of an association between the weight of a car and its gas mileage? Write an appropriate hypothesis.
- b) Are the assumptions for regression satisfied?
- c) Test your hypothesis and state your conclusion.
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Chapter 20 Solutions
Intro Stats, Books a la carte Plus NEW MyLab Statistics with Pearson eText -- Access Card Package (5th Edition)
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