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Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

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Basic Math

Sales personnel for Skillings Distributors submit weekly reportslisting the customer contacts made during the week. A sample of 85weekly reports showed a sample mean of 17.5 customer contacts perweek. The sample standard deviation was 5.7 . Provide 90% and 95%confidence intervals for the population mean number of weeklycustomer contacts for the sales personnel.

90% confidence interval, to 2 decimals:

_____ , _____

95% confidence interval, to 2 decimals

_____ , _______

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