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

You need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 48 days.If you must estimate the population mean within 6 days, how many outside salespeople should you sample? Use the 90 percent confidence level. (Round your answer to the next whole number.)Number of outside salespeople- Question:You need to estimate the mean number of travel days per year for outside salespeople. Themean of a small pilot study was 150 days, with a standard deviation of 48 days.If you must...