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 51E
Ozone and population The Environmental Protection Agency is examining the relationship between the ozone level (in parts per million) and the population (in millions) of U.S. cities. Part of the
Dependent variable is Ozone
R-squared = 84.4%
s = 5.454 with 16 – 2 = 14 df
- a) We suspect that the ozone level is related to the population of a city. Is the relationship statistically significant? Assuming the conditions for inference are satisfied, test an appropriate hypothesis and state your conclusion in context.
- b) Do you think that the population of a city is a useful predictor of ozone level? Use the values of both R2 and s in your explanation.
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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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