Suppose you are the manager of Speedy Oil Change which claims that it will change the oil
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42 | 29 | 19 | 11 | 10 | 27 |
41 | 27 | 22 | 26 | 28 | 32 |
17 | 15 | 25 | 35 | 32 | 22 |
13 | 31 | 17 | 30 | 33 | 25 |
18 | 24 | 28 | 21 | 40 | 19 |
34 | 30 | 14 | 23 | 22 | 10 |
In the questions below, you will test if the mean is significantly less than 30 minutes at a significance level of 0.01.
Write the null and alternative hypothesis. Calculate the test statistic and the p-value.
Related Book For
Management Accounting Information for Decision-Making and Strategy Execution
ISBN: 978-0137024971
6th Edition
Authors: Anthony A. Atkinson, Robert S. Kaplan, Ella Mae Matsumura, S. Mark Young
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