Introduction to Statistics and Data Analysis
5th Edition
ISBN: 9781305115347
Author: Roxy Peck; Chris Olsen; Jay L. Devore
Publisher: Brooks Cole
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Textbook Question
Chapter 5.1, Problem 6E
The accompanying data are x = Cost (cents per serving) and y = Fiber content (grams per serving) for 18 high-fiber cereals rated by Consumer Reports (consumerreports.org/health).
- a. Calculate and interpret the value of the
correlation coefficient for this data set. (Hint: See Example 5.1.) - b. The serving size differed for the different cereals, with serving sizes varying from ½ cup to 1¼ cups. Converting price and fiber content to “per cup” rather than “per serving” results in the accompanying data. Is the correlation coefficient for the per cup data greater than or less than the correlation coefficient for the per serving data?
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Chapter 5 Solutions
Introduction to Statistics and Data Analysis
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