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Management development participants have to take a standardized test to test their knowledge of company rules and regulations.

a) The training coordinator is interested in examining how women are performing on the test. She takes a small sample of test scores (below). What is the best way she can summarize these scores using measures of central tendency?

70 68 66 73 77 95 69 64 95 71

b) Suppose that among all participants, the mean test score is 70.07 and the standard deviation is 10.27. Use z-scores to interpret a raw score of 80. What is the corresponding z-score? How would you interpret this result? Show your work.

c) The CEO wants to select only those persons who scored better than 95 percent of all participants for a special assignment. Assume a mean of 70.07 and a standard deviation of 10.27. Use z-scores to determine the minimum raw score required to be selected for this assignment.

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