A Control Chart for Monitoring the Process Mean Using Successive Sampling Over Two Occasions

Muhammad Azam, Asma Arshad, Muhammad Aslam, Chi Hyuck Jun

Research output: Contribution to journalJournal articlepeer-review

7 Scopus citations

Abstract

This article proposes a new control chart to monitor the process mean based on the sample statistics from two successive occasions. First occasion units are independently drawn to obtain information of the study variable, and the second occasion units are drawn collectively with a retained portion of first occasion as matched units, while the other portion is the collection of the fresh units from the remaining unselected units at first occasion. The in-control and out-of-control average run lengths (ARLs) are derived for performance assessment under mean shifts. The performance of the proposed control chart is compared with traditional Shewhart control chart and a EWMA chart in terms of ARLs, which exhibits better performance when process is shifted from the target mean.

Original languageEnglish
Pages (from-to)2915-2926
Number of pages12
JournalArabian Journal for Science and Engineering
Volume42
Issue number7
DOIs
StatePublished - 1 Jul 2017

Keywords

  • Average run length
  • Control chart
  • Normal distribution
  • Successive sampling

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