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A large organisation promotes its call centre efficiency stating that the average time to answer all calls is 7.5 minutes with a standard deviation of
A large organisation promotes its call centre efficiency stating that the average time to answer all calls is 7.5 minutes with a standard deviation of 2.4 minutes. Assuming the waiting time duration is approximately normal: a. What is the probability that a random customer would need to wait more than 10 minutes for their call to be answered
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Statistical Techniques in Business and Economics
Authors: Douglas A. Lind, William G Marchal
17th edition
1259666360, 978-1259666360
