Question: Suppose a 95 confidence interval for the mean salary of

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.


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  • CreatedJanuary 28, 2015
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