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- Title
The Average Run Length Performance of Shewhart Control Chart when the Process Data are Sampled from Finite Population.
- Authors
Nidsunkid, Sudarat; Chomtee, Boonorm
- Abstract
A Shewhart control chart is an important control chart which is widely used to monitor mean process and control the quality charac-teristic of a manufacturing process in order to achieve quality improve ment. In some situations, the data may be sampled from a finite distribution and using Shewhart chart can lead to erroneous conclusions. We apply a Shewhart control chart with finite population correction (FPC) to investigate the ARL performance based on uniform, symmetric, and skewed distribution. The results show that the Shewhart control chart with FPC is more effective against the Shewhart control chart without FPC. Moreover, we investigate adjusted k (the distance of the control limits from the center line) values which are suitable for getting the approximate in-control ARL 370.
- Subjects
ASSOCIATION of Research Libraries; QUALITY control charts; SKEWNESS (Probability theory); ELECTRONIC data processing; MANUFACTURING processes; FINITE, The; QUALITY control
- Publication
International Journal of Mathematics & Computer Science, 2022, Vol 17, Issue 2, p509
- ISSN
1814-0424
- Publication type
Article