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What is the 40th percentile of wait times for customers calling the help line?

What is the 40th percentile of wait times for customers calling the help line?

MATLAB: An Introduction with Applications
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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When a customer calls the customer service line of XYZ Company, the amount of time that a customer must wait "on hold" until somebody answers the line and helps the customer follows an exponential distribution with mean of 7.5 minutes. What is the 40th percentile of wait times for customers calling the help line? 0.122 minutes 3.83 minutes 0.68 minutes 6.87 minutes None of the choices
Transcribed Image Text:When a customer calls the customer service line of XYZ Company, the amount of time that a customer must wait "on hold" until somebody answers the line and helps the customer follows an exponential distribution with mean of 7.5 minutes. What is the 40th percentile of wait times for customers calling the help line? 0.122 minutes 3.83 minutes 0.68 minutes 6.87 minutes None of the choices
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