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he director of research and development is testing a new medicine. She wants to know if...

he director of research and development is testing a new medicine. She wants to know if there is evidence at the 0.10.1 level that the medicine relieves pain in more than 316316 seconds. For a sample of 1818 patients, the average time in which the medicine relieved pain was 319319 seconds with a variance of 576576. Assume the population distribution is approximately normal.

1. State the null and alternative hypotheses.

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