Question

Suppose the coffee industry claimed that the average adult drinks 1.7 cups of coffee per day. To test this claim, a random sample of 40 adults was selected, and their average coffee consumption was found to be 1.9 cups per day. Assume the standard deviation of daily coffee consumption per day is 0.6 cups. Using alpha equals 0.01, determine the p-value for this test.

Answer #1

as test statistic is not in rejection region we can not reject null hypothesis

we do not have evidence at 0.01 level to conclude that mean daily coffee consumption per day is different from 1.7.

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