# Question

Suppose a 95% confidence interval for the mean salary of college graduates in a town in Mississippi is given by [$36,080, $43,920]. The population standard deviation used for the analysis is known to be $12,000.

a. What is the point estimator of the mean salary of all college graduates in this town?

b. Determine the sample size used for the analysis.

a. What is the point estimator of the mean salary of all college graduates in this town?

b. Determine the sample size used for the analysis.

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