Question: A researcher wants to construct a 99% confidence interval for the mean monthly earnings of city managers. They will tolerate a margin of error of

A researcher wants to construct a 99% confidence interval for the mean monthly earnings of city managers. They will tolerate a margin of error of $150 in estimating the mean. The standard deviation of earnings is $1,200. What is the minimum required sample size? Question 1 options: A) 245 B) 246 C) 425 D) 347

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