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  3. suppose a retailer claims that the average wait ti

Suppose a retailer claims that the average wait time for a customer on its support line...

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Statistics

Suppose a retailer claims that the average wait time for acustomer on its support line is 173 seconds. A random sample of 56customers had an average wait time of 164 seconds. Assume thepopulation standard deviation for wait time is 50 seconds. Using a95​% confidence​ interval, does this sample support the​ retailer'sclaim?

Using a 95​% confidence​ interval, does this sample support the​retailer's claim? Select the correct choice​ below, and fill in theanswer boxes to complete your choice. ​(Round to two decimal placesas​ needed.)

A. No​, because the​ retailer's claim is not between the lowerlimit of nothing seconds and the upper limit of nothing seconds forthe mean wait time.

B. Yes​, because the​ retailer's claim is nothing between thelower limit of nothing seconds and the upper limit of nothingseconds for the mean wait time.

Answer & Explanation Solved by verified expert
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SolutionGivenClaim the average wait time for a customer on its support lineis 173 secondsSample size n 56Sample mean secondsThe population    See Answer
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