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a research company desires to know the mean consumption of milk per week among males over age 25. they believe that the milk consumption has

a research company desires to know the mean consumption of milk per week among males over age 25. they believe that the milk consumption has a mean of 3.7 liters, and want to construct a 95% confidence interval with a maximum error of 0.1 liters. Assuming a standard deviation of 1.3 liters, what is the minimum number of males over age 25 they must include in their sample?

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