Service time for a customer coming through a checkout counter in a retail store is a random variable with the mean of 4.0 minutes and standard deviation of 2.5 minutes. Suppose that the distribution of service time is fairly close to a normal distribution. Suppose there are two counters in a store, n₁ = 32 customers in the first line and n₂ = 45 customers in the second line. Find the probability that the difference between the mean service time for the shorter line X, and the mean service time for the longer one X₂ is more than 0.8 minutes. Assume that the service times for each customer can be regarded as independent random variables. Round your answer to two decimal places (e.g. 98.76). P = i
Service time for a customer coming through a checkout counter in a retail store is a random variable with the mean of 4.0 minutes and standard deviation of 2.5 minutes. Suppose that the distribution of service time is fairly close to a normal distribution. Suppose there are two counters in a store, n₁ = 32 customers in the first line and n₂ = 45 customers in the second line. Find the probability that the difference between the mean service time for the shorter line X, and the mean service time for the longer one X₂ is more than 0.8 minutes. Assume that the service times for each customer can be regarded as independent random variables. Round your answer to two decimal places (e.g. 98.76). P = i
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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Transcribed Image Text:Service time for a customer coming through a checkout counter in a retail store is a random variable with the mean of 4.0 minutes and
standard deviation of 2.5 minutes. Suppose that the distribution of service time is fairly close to a normal distribution. Suppose there
are two counters in a store, n₁ = 32 customers in the first line and n₂ = 45 customers in the second line. Find the probability that the
difference between the mean service time for the shorter line X, and the mean service time for the longer one X₂ is more than 0.8
minutes. Assume that the service times for each customer can be regarded as independent random variables.
Round your answer to two decimal places (e.g. 98.76).
P =
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