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Question 5 Sales personnel for a product distributor submit weekly reports listing the customer contacts made during the week. A sample of 65 weekly reports

Question 5

Sales personnel for a product distributor submit weekly reports listing the customer contacts made during the week. A sample of 65 weekly reports showed a sample mean of 19.5 customer contacts per week. The sample standard deviation was 5.2.

A.Find a 90% confidence interval for the population mean and interpret.

B.Find a 95% confidence interval for the population mean and interpret.

C.Compare the intervals between 90% and 95% confidence level.

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