SOLUTION: The customer service department of a large company monitors the incoming phone calls to determine how long a customer must wait on hold before receiving the assistance they need. T
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Question 729348: The customer service department of a large company monitors the incoming phone calls to determine how long a customer must wait on hold before receiving the assistance they need. The company claims that the average time on hold is 2 minutes and the standard deviation is 0.6 minutes.
a. Suppose you called the customer service department and waited on hold for 1 minute. Find and interpret the z-score associated with your waiting time.
b. Would you expect to wait for more than 5 minutes when calling the customer service department? Explain. Answer by lynnlo(4176) (Show Source):
(