A new variable sample size control chart using MDS sampling

ABSTRACT

In this manuscript, a new variable sample size (VSS) control chart using multiple dependent state sampling is proposed. The sample size for the next subgroup is chosen on the basis of the location of the control statistic from the current subgroup in two pairs of the control limits. The average run length of the proposed chart is evaluated using Monte Carlo simulation. The performance of the proposed chart over the existing VSS control chart is presented using simulation study.

KEYWORDS:

• Variable sample size
• multiple dependent state sampling
• Monte Carlo simulation
• average run length

Acknowledgements

The authors are deeply thankful to reviewers and editor for their valuable suggestions to improve the quality of this manuscript. This project was funded by the Deanship of Scientific Research (DSR) at King Abdulaziz University, Jeddah, under grant No. (G/98/130/37). The authors, therefore, gratefully acknowledge with thanks the DSR technical and financial support.

Disclosure statement

No potential conflict of interest was reported by the authors.