Statistics Solutions

[Steps Shown] Find the 95% confidence interval for the variance and standard deviation for the time it takes a customer to place a telephone order with

Question: Find the 95% confidence interval for the variance and standard deviation for the time it takes a customer to place a telephone order with a large catalogue company if a sample of 23 telephone orders has a standard deviation of 3.8 minutes. Assume the variable is normally distributed. Do you think that the times are relatively consistent?

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Solution: The downloadable solution consists of 1 pages
Deliverable: Word Document


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