Optimal designs of the median run length based double sampling X chart for minimizing the average sample size.

Designs of the double sampling (DS) X chart are traditionally based on the average run length (ARL) criterion. However, the shape of the run length distribution changes with the process mean shifts, ranging from highly skewed when the process is in-control to almost symmetric when the mean shift is...

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Bibliographic Details
Main Authors: Wei Lin Teoh, Michael B C Khoo, Sin Yin Teh
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3723779?pdf=render