
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 1E
For each of the scatterplots shown, answer the following questions:
- a. Does there appear to be a relationship between x and y?
- b. If so, does the relationship appear to be linear?
- c. If so, would you describe the linear relationship as positive or negative?
Scatterplot 2:
Scatterplot 3:
Scatterplot 4:
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Use the Wilcoxon signed rank test to test the hypothesis that the median number of pages in the statistics books in the library from which the sample was taken is 400. A sample of 12 statistics books have the following numbers of pages
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Chapter 5 Solutions
Introduction to Statistics and Data Analysis
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