Introductory Statistics
1st Edition
ISBN: 9781938168208
Author: Barbara Illowsky, Susan Dean
Publisher: OpenStax College
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Textbook Question
Chapter 13, Problem 80H
Are the variances for incomes on the East Coast and the West Coast the same? Suppose that Table 13.34 shows
the results of a study. Income is shown in thousands of dollars. Assume that both distributions are normal. Use a level of
significance of 0.05.
| East | West |
| 38 | 71 |
| 47 | 126 |
| 30 | 42 |
| 82 | 51 |
| 75 | 44 |
| 52 | 90 |
| 115 | 88 |
| 67 |
Table 13.34
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