Mathematics, 08.08.2019 00:10 tylerkitchen44
Apharmaceutical company makne tranquilizers that an elaimed to have amean effective period of 2.8 hr. researchers in a hospital used the drug on a random sample of 81 patients and found the mean effective period to be 2.5 hr with a standard deviation of 0.4 hr. does this indicate that the company's claim is too high? (use a 1% level of significance.) ao: has (et decision interpetdian 4
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Apharmaceutical company makne tranquilizers that an elaimed to have amean effective period of 2.8 hr...
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