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A researcher wants to determine the sample size necessary to adequately conduct a study to estimate the population mean to within 5 points. The range

A researcher wants to determine the sample size necessary to adequately conduct a study to estimate the population mean to within 5 points. The range of population values is 80 and the researcher plans to use a 90% level of confidence. The sample size should be at least _______.

700

692

44

62

216

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