Answered: Sample # x-bar R 1 5.4 3.0 2 5.4 1.1 3…

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Sample # x-bar R 1 5.4 3.0 2 5.4 1.1 3 4.2 2.8 4 5.0 2.6 5 4.7 5.4 6 5.8 1.8 7 4.6 2.1 8 4.8 1.5 9 5.4 2.3 10 4.7 1.6

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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Question

Assume that the service time mean suddenly increases by 1.5 minute. What is the number of samples, on average, that is needed to detect this shift? (use n=4 & σ=0.75)?

Sample
1
3
4
6.
7
8
9.
10
x-bar
5.4
5.4
4.2
5.0
4.7
5.8
4.6
4.8
5.4
4.7
R
3.0
1.1
2.8
2.6
5.4
1.8
2.1
1.5
2.3
1.6

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