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

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Statistics

Sales personnel for Skillings Distributors submit weekly reportslisting the customer contacts made during the week. A sample of 68weekly reports showed a sample mean of 16.5 customer contacts perweek. The sample standard deviation was 5.2.

Provide a 90% confidence interval for the population mean numberof weekly customer contacts for the sales personnel.

Provide 95% confidence interval for the population mean numberof weekly customer contacts for the sales personnel.

Answer & Explanation Solved by verified expert
4.3 Ratings (770 Votes)
Here the report based on contact based on customer contact madeduring the week in sales personnel is givenFor constructing the confidence interval Let us consider thenull and alternative hypothesis    See Answer
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