Licensed Unlicensed Requires Authentication Published by De Gruyter September 25, 2021
The SPRT Sign Chart for Process Dispersion
Dadasaheb G. Godase and Shashibhushan B. Mahadik
From the journal Stochastics and Quality Control
https://doi.org/10.1515/eqc-2021-0026
A nonparametric sequential probability ratio test control chart to monitor the process dispersion based on the sequential sign statistic is proposed. The statistical performance of this chart is evaluated by comparing it with that of the charts for dispersion based on sign statistic in the existing literature. It is found that the proposed chart outperforms all these charts uniformly in detecting a shift of any size over a wide range. An implementation of the chart is illustrated through an example.
Keywords: Statistical Process Control; Average Sample Number; Operating Characteristic
MSC 2010: 62P30; 97K80
Funding source: Department of Science and Technology, Ministry of Science and Technology, India
Award Identifier / Grant number: IF160684
Award Identifier / Grant number: SR/FST/MSI-103
Funding statement: Dadasaheb G. Godase's work was supported by Department of Science and Technology through INSPIRE fellowship [IF160684]. Shashibhushan B. Mahadik's work was supported in part by Department of Science and Technology, New Delhi through FIST scheme (SR/FST/MSI-103 dated 18/11/2015).
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Godase, Dadasaheb G. and Mahadik, Shashibhushan B.. "The SPRT Sign Chart for Process Dispersion" Stochastics and Quality Control, vol. 37, no. 1, 2022, pp. 101-106. https://doi.org/10.1515/eqc-2021-0026
Godase, D. & Mahadik, S. (2022). The SPRT Sign Chart for Process Dispersion. Stochastics and Quality Control, 37(1), 101-106. https://doi.org/10.1515/eqc-2021-0026
Godase, D. and Mahadik, S. (2022) The SPRT Sign Chart for Process Dispersion. Stochastics and Quality Control, Vol. 37 (Issue 1), pp. 101-106. https://doi.org/10.1515/eqc-2021-0026
Godase, Dadasaheb G. and Mahadik, Shashibhushan B.. "The SPRT Sign Chart for Process Dispersion" Stochastics and Quality Control 37, no. 1 (2022): 101-106. https://doi.org/10.1515/eqc-2021-0026
Godase D, Mahadik S. The SPRT Sign Chart for Process Dispersion. Stochastics and Quality Control. 2022;37(1): 101-106. https://doi.org/10.1515/eqc-2021-0026
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