(Answered) The monthly incomes from a randomly selected sample of

Statistics

The monthly incomes from a randomly selected sample of business school alumni are show below:

Monthly Income (in $1)
6500
5500
7500
12000
6000
6300
7100
9000

A. What is the standard error of the mean income per month (in s) for all workers in the company?

B. Construct a 95% confidence interval for the population mean income level per month, assuming the population has a normal distribution.

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