Mathematics, 03.04.2020 15:35 nina1390
A pharmaceutical company claims that it’s product will regrow hair at the rate of 1 inch per month. Independent researchers want to conduct an experiment to determine if hair growth is less than what is advertised. They conduct a study at the α = .05 level with 100 men and find that the average hair regrowth is .8 inches per month, with a sample std dev of .3. The critical value is –1.64.What is the test statistic or obtained value?
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A pharmaceutical company claims that it’s product will regrow hair at the rate of 1 inch per month....
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