Question: How large a sample should be selected to provide a 95% confidence interval with a margin of error of 7? Assume that the population standard

How large a sample should be selected to provide a 95% confidence interval with a margin of error of 7? Assume that the population standard deviation is 50. Round your answer to next whole number

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How large a sample should be selected to provide a 95% confidence interval with a margin of error of 7? Assume that the population standard deviation is 50 . Round your answer to next whole number.

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