Answered: An online customer service department…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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An online customer service department estimates that about 15 percent of callers have to wait more than 8 minutes to have their calls answered by a person. The department conducted a simulation of 1,000 trials to estimate the probabilities that a certain number of callers out of the next 10 callers will have to wait more than 8 minutes to have their calls answered. The simulation is shown in the following histogram.

Based on the simulation, what is the probability that at most 2 of the next 10 callers will have to wait more than 8 minutes to have their calls answered?

12. An online customer service department estimates that about 15 percent of callers have to wait more than 8
minutes to have their calls answered by a person. The department conducted a simulation of 1,000 trials to
estimate the probabilities that a certain number of callers out of the next 10 callers will have to wait more
than 8 minutes to have their calls answered. The simulation is shown in the following histogram.
0.345
0.35
0.284
0.30
0.25
0.20
0.181
0.142
0.15
0.10
0.039
0.05
0.008
0.001
1
2
3
4
6
7
Number of Callers
Based on the simulation, what is the probability that at most 2 of the next 10 callers will have to wait more
than 8 minutes to have their calls answered?
Relative Frequency

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