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Question: The PricewaterhouseCoopers Human Capital Index Report indicated that the average cost for an American company to fill a job vacancy during the study period was $3,270. Sample data similar to those used in the study are in a file titled Hired.
a. Produce a relative frequency histogram for these data. Does it seem plausible the data were sampled from a normally distributed population?
b. Calculate the mean and standard deviation of the cost of filling a job vacancy.
c. Determine the probability that the cost of filling a job vacancy would be between $2,000 and $3,000. d. Given that the cost of filling a job vacancy was between $2,000 and $3,000, determine the probability that the cost would be more than $2,500.
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