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- Title
On the location‐based memory type control charts under modified successive sampling scheme.
- Authors
Hyder, Mehvish; Mahmood, Tahir; Butt, Muhammad Moeen; Raza, Syed Muhammad Muslim; Abbas, Nasir
- Abstract
The magnificent seven statistical process control (SPC) tools are commonly used to monitor the variation in the process. Control charts are the most efficient and real‐time monitoring tool from the SPC toolkit. A control chart visually differentiates the effect of special or inherent cause variations and indicates the process as out‐of‐control when such a special cause exists. For single occasion problems, simple random sampling (SRS) is used as a sampling design. When the quality of a product is assessed at regular intervals, then modified successive sampling (MSS) is chosen as the preferred sampling mechanism. Hence, this paper intends to propose EWMA‐MSS(S) and CUSUM‐MSS(S) charts under MSS schemes to monitor moderate to small shifts in the location parameter of a process. We presented the performance evaluation of EWMA‐MSS(S) and CUSUM‐MSS(S) charts in terms of run length metrics and compared them with the Shewhart‐MSS(S) control chart. The outcomes show that the EWMA‐MSS(S) perform amazingly well as compared to the Shewhart‐MSS(S) and CUSUM‐MSS(S) control charts. Further, illustration of the proposed charts on the QSAR aquatic toxicity dataset is also used to demonstrate the application of the proposed charts.
- Subjects
QUALITY control charts; STATISTICAL process control; STATISTICAL sampling
- Publication
Quality & Reliability Engineering International, 2022, Vol 38, Issue 4, p2200
- ISSN
0748-8017
- Publication type
Article
- DOI
10.1002/qre.3049