SAT, 04.10.2021 21:00 svarner2001

the mean number of travel days per year for salespeople employed by three hardware distributors needs to be estimated with a 0.98 degree of confidence. for a small pilot study, the mean was 150 days and the standard deviation was 14 days. if the population mean is estimated within three days, how many salespeople should be sampled?

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the mean number of travel days per year for salespeople employed by three hardware distributors need...