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The tub store boasts that over 65% of its salesmen have college degrees. Provide the formal null and alternative hypotheses for a test of this
- The tub store boasts that over 65% of its salesmen have college degrees. Provide the formal null and alternative hypotheses for a test of this question. Is this a one or two-tailed hypothesis?
- Do you have a large enough sample to conduct the correct hypothesis test? Explain with a valid calculation why or why not.
- If your answer to part 2 is yes, then conduct this hypothesis test based on the 95% significance level. Do you reject or fail to reject your null hypothesis? Why?
| Tub Sales ($) | College Degree (1 = Yes) |
| 107000 | 1 |
| 87300 | 0 |
| 103000 | 1 |
| 97700 | 1 |
| 111600 | 1 |
| 95700 | 0 |
| 91200 | 0 |
| 119600 | 1 |
| 94200 | 0 |
| 91300 | 1 |
| 88700 | 0 |
| 109700 | 1 |
| 110400 | 0 |
| 90800 | 0 |
| 118300 | 1 |
| 91500 | 0 |
| 88800 | 0 |
| 97400 | 1 |
| 71800 | 0 |
| 106900 | 1 |
| 87000 | 0 |
| 84500 | 0 |
| 91100 | 1 |
| 95800 | 0 |
| 104100 | 1 |
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A First Course In Probability
Authors: Sheldon Ross
10th Edition
0134753119, 978-0134753119
