Suppose that an independent study of middle-level managers employed at companies located in Atlanta, Georgia, was conducted to compare the salaries of managers working at firms in Atlanta to the salaries of middle-level managers across the nation. The following data show the salary, in thousands of dollars, for a sample of 15 middle-level managers employed at companies in the Atlanta area.

a. Compute the median salary for the sample of 15 middle-level managers. Suppose the median salary of middle-level managers employed at companies located across the nation is $85,000. How does the median salary for middle-level managers in the Atlanta area compare to the median for managers across the nation?

b. Compute the mean annual salary for managers in the Atlanta area and discuss how and why it differs from the median computed in part (a) for Atlanta area managers.

c. Compute the first and third quartiles for the salaries of middle-level managers in the Atlanta area.

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