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an admissions director wants to estimate the mean age of all students enrolled at a college. the estimate must be within 1.5 years o father

an admissions director wants to estimate the mean age of all students enrolled at a college. the estimate must be within 1.5 years o father population meann. determine the minimum required sample size to contruct a 96% confidence interval for the population mean. assume the population standard deviation is 1.2 years

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