Mathematics, 16.11.2020 18:00 eithzyd1648

A medical statistician wants to estimate the average weight loss of people who are on a new diet plan. In a preliminary study, he guesses that the standard deviation of the population of weight losses is about 10 pounds. How large a sample should he take to estimate the mean weight loss to within 2 pounds, with 90% confidence?

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A medical statistician wants to estimate the average weight loss of people who are on a new diet pla...