Adult Drink
a Particular Study Claims That the Average U $\alpha$

question 138

Essay

Adult drink
A particular study claims that the average U.S.adult drinks 1.7 cups of coffee per day.To test this claim,a sample of 35 adults were asked about their coffee consumption.The sample average was 1.95 cups per day.Assume the population standard deviation is 0.5 cups per day and set $\alpha$ = 0.10.
-State the null and alternative hypothesis.

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Definitions:

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