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Samples of n = 9 items each are taken from a process at regular intervals. A quality characteristic is measured, and x and R control charts are made based on 2.7 sigma limits and used the following summaries: 50 50 E = 2000 and ER, = 200 Assume that the quality characteristic is normally distributed. If there was a decrease in the process mean by 0.3a, then the value of ARL, is Select one: Oa. 3.6 O b. 27.70083 C. 1.037452 Od. 27.85515 e. 5000

Samples of n = 9 items each are taken from a process at regular intervals. A quality characteristic is measured, and x and R control charts are made based on 2.7 sigma limits and used the following summaries: 50 50 E = 2000 and ER, = 200 Assume that the quality characteristic is normally distributed. If there was a decrease in the process mean by 0.3a, then the value of ARL, is Select one: Oa. 3.6 O b. 27.70083 C. 1.037452 Od. 27.85515 e. 5000

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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Samples of n = 9 items each are taken from a process at regular intervals. A quality characteristic is measured, and x and R control charts are made based on 2.7 sigma limits and used the following summaries: 50 50 Ex = 2000 and R, = 200 %3D Assume that the quality characteristic is normally distributed. If there was a decrease in the process mean by 0.30, then the value of ARLi is Select one: Oa. 3.6 Ob. 27.70083 C. 1.037452 O d. 27.85515 e. 5000
Transcribed Image Text:Samples of n = 9 items each are taken from a process at regular intervals. A quality characteristic is measured, and x and R control charts are made based on 2.7 sigma limits and used the following summaries: 50 50 Ex = 2000 and R, = 200 %3D Assume that the quality characteristic is normally distributed. If there was a decrease in the process mean by 0.30, then the value of ARLi is Select one: Oa. 3.6 Ob. 27.70083 C. 1.037452 O d. 27.85515 e. 5000
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