Find sales representatives in pharmaceutical industry sample

Reference no: EM13135704

You need to estimate the mean number of travel days per year for pharmaceutical sales representatives. The mean of a small pilot study was 125 days with a standard deviation of 14 days. If you must estimate the population mean within 2 days, how many sales representatives in the pharmaceutical industry should you sample? Use the 90% confidence interval.

Reference no: EM13135704

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