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The director of research and development is testing a new medicine. She wants to know if there is evidence at the 0.05 level that the

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The director of research and development is testing a new medicine. She wants to know if there is evidence at the 0.05 level that the medicine relieves pain in more than 331 seconds. For a sample of 53 patients, the mean time in which the medicine relieved pain was 336 seconds. Assume the variance is known to be 361. Step 1 of 5: Enter the hypotheses: Tables Keypac Answer Keyboard Shortcu Ho: Ha

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