A pharmaceutical company claim

timer Asked: Dec 8th, 2015

Question description

A pharmaceutical company claims that their muscle relaxingtablets have a mean effective period of 4.4 hours. Researchers representing the Food and Drug Administration suspect the company’s claim is too high. The researchers administer the muscle relaxing tablets to a random sample of 121 patients and find that the mean effective period is 4.2 hours with s = 1.1 hours. Do the sample results support the researcher’s suspicions? (Use α = 1%)

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