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Determine the sample size needed to construct a 98 % confidence interval to estimate the population mean when the population standard deviation is 65.37, and

Determine the sample size needed to construct a 98 % confidence interval to estimate the population mean when the population standard deviation is 65.37, and the margin of error is 18.56.

Use two decimal places for the critical value and round to the nearest integer for your final answer. Eg. 48.47 = 49

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