A marketing research company desires to know that mean consumption of milk per week among people...

A marketing research company desires to know that mean consumption of milk per week among people over age 31. They believe that the milk consumption has a mean of 4.6 L I want to construct a 90% confidence interval with the maximum error of 0.08 L. Assuming you variance of 0.81 L what is the minimum number of people over age 31 they must include in their sample round your answer up to the next integer

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orchestra answered 2 years ago

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