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Mathematics, 21.11.2019 23:31 marc9848
Sales personnel for skillings distributors submit weekly reports listing the customer contacts made during the week. a sample of 68 weekly reports showed a sample mean of 17.5 customer contacts per week. the sample standard deviation was 4.2. provide a 90% confidence interval for the population mean number of weekly customer contacts for the sales personnel. (round your answers to two decimal places.)
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