Estimate mean weight loss to within two pounds

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Reference no: EM13140361

.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 weight losses is about 10 pounds. How large a sample should he take to estimate the mean weight loss to within 2 pounds, with 95% confidence?

Reference no: EM13140361

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