[This problem is taken from Montgomery, Runger, and Hubele (2007).] The amount of time that a customer spends waiting at an airport check-in counter is a random variable with mean 8.2 minutes and standard deviation 1.5 minutes. Suppose that a random sample of size 49 customers is observed. Find the probability that the average time waiting in line for these customers is (a) less than 8 minutes; (b) between 8 and 9 minutes; (c) less than 7.5 minutes.
[This problem is taken from Montgomery, Runger, and Hubele (2007).] The amount of time that a customer spends waiting at an airport check-in counter is a random variable with mean 8.2 minutes and standard deviation 1.5 minutes. Suppose that a random sample of size 49 customers is observed. Find the probability that the average time waiting in line for these customers is (a) less than 8 minutes; (b) between 8 and 9 minutes; (c) less than 7.5 minutes.
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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