Suppose a retailer claims that the average wait time for a customer on its support line is 180 seconds. A random sample

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Suppose A Retailer Claims That The Average Wait Time For A Customer On Its Support Line Is 180 Seconds A Random Sample 1 (14.31 KiB) Viewed 16 times

Suppose a retailer claims that the average wait time for a customer on its support line is 180 seconds. A random sample of 40 customers had an average wat time of 170 seconds. Assume the population standard deviation for wait time is 47 seconds. Using a 95% confidence interval, does this sample support the retailer's claim? Using a 95% confidence interval, does this sample support the retailer's claim? Select the correct choice below, and in the answer boxes to complete your choice (Round to two decimal places as needed) OA Yes, because the retaler's claim is between the lower lindof OB No. because the retailer's claim is not between the lower limit of seconds and the upper limit of seconds and the upper limit of seconds for the mean wate saconds for the mean wat me