Issue: 2018/Vol.28/No.3, Pages 29-43
ON THE PERFORMANCE OF MODIFIED EWMA CHARTS USING RESAMPLING SCHEMES
Nasrullah Khan
, Talat Yasmin, Muhammad Aslam, Chi-Hyuck Jun
Cite as: N. Khan, T. Yasmin, M. Aslam, C. Jun. On the performance of modified EWMA charts using resampling schemes. Operations Research and Decisions 2018: 28(3), 29-43. DOI 10.5277/ord180303
Abstract
Two popular sampling schemes have been used to design control charts by means of a modified exponentially weighted moving average (EWMA) statistic. The structures of the proposed charts, using repetitive group sampling and multiple dependent state sampling, have been presented. The values of average run length have been determined by some specified control chart parameters. The performance of the proposed chart was illustrated via a simulation study. The efficiency of the proposed chart has been compared with the existing one. A practical example based on real data was also given to explain the application of the proposed chart in industry.
Keywords: repetitive group sampling, multiple dependent state sampling, EWMA statistic, average run length, simulation
Received: 24 June 2017 Accepted: 15 August 2018