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Cited 11 time in webofscience Cited 11 time in scopus
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A EWMA control chart based on an auxiliary variable and repetitive sampling for monitoring process location SCIE SCOPUS

Title
A EWMA control chart based on an auxiliary variable and repetitive sampling for monitoring process location
Authors
Saghir, A.Ahmad, L.Aslam, M.Jun, C.-H.
Date Issued
2019-08
Publisher
TAYLOR & FRANCIS INC
Abstract
This article develops an exponentially weighted moving average (EWMA) control chart using an auxiliary variable and repetitive sampling for efficient detection of small to moderate shifts in location. A EWMA statistic of a product estimator of the average (which utilities the information of auxiliary variables as well as repetitive sampling) is plotted on the proposed chart. The control chart coefficients of the proposed EWMA chart are determined for two strategic limits known as outer and inner control limits for the target in-control average run length. The performance of the proposed EWMA chart is studied using average run length when a shift occurs in the process average. The efficiency of the developed chart is compared with the competitive existing control charts. The results of the study revealed that proposed EWMA chart is more efficient than others to detect small changes in process mean.
URI
https://oasis.postech.ac.kr/handle/2014.oak/101142
DOI
10.1080/03610918.2018.1433837
ISSN
0361-0918
Article Type
Article
Citation
COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION, vol. 48, no. 7, page. 2034 - 2045, 2019-08
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전치혁JUN, CHI HYUCK
Dept of Industrial & Management Enginrg
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