The monthly incomes from a random sample of faculty at a university are shown below.
Compute a 90% confidence interval for the mean of the population. The population of all faculty incomes is known to be normally distributed. Give your answer in dollars.

Question

The monthly incomes from a random sample of faculty at a university are shown below.
  Compute a 90% confidence interval for the mean of the population. The population of all faculty incomes is known to be normally distributed. Give your answer in dollars.

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The Answer of The monthly incomes from a random sample of faculty at a university are shown below.
  Compute a 90% confidence interval for the mean of the population. The population of all faculty incomes is known to be normally distributed. Give your answer in dollars.

The Monthly Incomes from a Random Sample of Faculty at a University