MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Supermarket chain Kroger has used computer simulation and information technology to reduce the average waiting time for customers at 2300 stores. Using a new system called QueVision, which allows Kroger to better predict when shoppers will be checking out, the company was able to decrease the average customer waiting time to just 28 seconds (InformationWeek website). Assume that Kroger waiting times are exponentially distributed.
a. What is the
b. What is the probability that a customer will have to wait more than 2 minutes?
c. What is the probability that a customer will have to wait less than 3 minutes?
d. What is the probability that a customer will have to wait between 20 and 35 seconds?
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