Mathematics, 06.08.2019 23:30 cbrewer37
It is necessary for an automobile producer to estimate the number of miles per gallon achieved by its cars. suppose that the sample mean for a random sample of 100 cars is 27.2 miles and assume the standard deviation is 2.4 miles. now suppose the car producer wants to test the hypothesis that μ, the mean number of miles per gallon, is 25.9 against the alternative hypothesis that it is not 25.9. conduct a test using α=.05 by giving the following:
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