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You wish to estimate the mean number of travel days per year for salespeople. The mean of a small pilot study was 150 days, with

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You wish to estimate the mean number of travel days per year for salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 50 days. If you want to estimate the population mean within 4 days, how many salespeople should you sample? Use the 99% confidence level. (Use z Distribution Table) (Round up your answer to the next whole number.) Number of outside salespeople

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