Part 1 of 5
A certain pain-reliever is supposed to deliver 70 minutes of pain relief when given to a 150-160 lbs patient. A patient claims that the medicine provides the average relief time that is less than 70 minutes per take. A simple random sample of 39 patients shows the following relief times:
| 71.1 | 64.6 | 67.2 | 70 | 61.5 |
| 71 | 67.7 | 72 | 67.4 | 66.5 |
| 68.9 | 74.7 | 74.7 | 67.4 | 67.4 |
| 63.2 | 75.7 | 67.2 | 63.5 | 62 |
| 74.5 | 68.5 | 68.3 | 69.1 | 71.2 |
| 66.2 | 74.1 | 70.1 | 64.4 | 67.1 |
| 69.8 | 67.8 | 74.4 | 70.6 | 68.6 |
| 74.5 | 74 | 67.4 | 68 |
At the 10% significance level, test the patient's claim assuming that the population standard deviation of pain-relieving times is 4 minutes. (Note: The average and the standard deviation of the data are respectively 69.03 minutes and 3.73 minutes.)
Procedure:
Assumptions: (select everything that applies)
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