A scaled weighted variance S control chart for skewed populations
This paper proposes a new S control chart for monitoring process dispersion of skewed populations. This control chart, called Scaled Weighted Variance S control chart (SWV-S) hereafter, this new SWV-S control chart is an improvement of the Weighted Variance S control chart (WV-S) proposed by Khoo et...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
2016
|
| Subjects: | |
| Online Access: | https://repo.uum.edu.my/id/eprint/19632/1/JTAIT%2091%201%20%202016%2061%2074.pdf |
| _version_ | 1825804230888259584 |
|---|---|
| author | Atta, Abdu Mohammed Ali Shoraim, Majid H. A. Syed Yahaya, Sharipah Soaad Zain, Zakiyah Ali, Hazlina |
| author_facet | Atta, Abdu Mohammed Ali Shoraim, Majid H. A. Syed Yahaya, Sharipah Soaad Zain, Zakiyah Ali, Hazlina |
| author_sort | Atta, Abdu Mohammed Ali |
| collection | UUM |
| description | This paper proposes a new S control chart for monitoring process dispersion of skewed populations. This control chart, called Scaled Weighted Variance S control chart (SWV-S) hereafter, this new SWV-S control chart is an improvement of the Weighted Variance S control chart (WV-S) proposed by Khoo et al.[11].The proposed control chart reduces to the Shewhart S control chart when the underlying distribution is symmetric.The proposed SWV-S control chart compared with the Shewhart S and WV-S control charts.An illustrative example is given to show how the proposed SWV-S control chart is constructed and works. Simulations study show that the proposed SWV-S control chart has the lower false alarm rates than the Shewhart S control chart and WV-S control chart when the underlying distributions are Weibull, lognormal and gamma. In terms of the probability of detection rates, the proposed SWV-S control chart is closer to S control chart with the exact method than those of the Shewhart S and WV-S control charts. |
| first_indexed | 2024-07-04T06:11:02Z |
| format | Article |
| id | uum-19632 |
| institution | Universiti Utara Malaysia |
| language | English |
| last_indexed | 2024-07-04T06:11:02Z |
| publishDate | 2016 |
| record_format | eprints |
| spelling | uum-196322016-11-15T07:51:09Z https://repo.uum.edu.my/id/eprint/19632/ A scaled weighted variance S control chart for skewed populations Atta, Abdu Mohammed Ali Shoraim, Majid H. A. Syed Yahaya, Sharipah Soaad Zain, Zakiyah Ali, Hazlina QA75 Electronic computers. Computer science This paper proposes a new S control chart for monitoring process dispersion of skewed populations. This control chart, called Scaled Weighted Variance S control chart (SWV-S) hereafter, this new SWV-S control chart is an improvement of the Weighted Variance S control chart (WV-S) proposed by Khoo et al.[11].The proposed control chart reduces to the Shewhart S control chart when the underlying distribution is symmetric.The proposed SWV-S control chart compared with the Shewhart S and WV-S control charts.An illustrative example is given to show how the proposed SWV-S control chart is constructed and works. Simulations study show that the proposed SWV-S control chart has the lower false alarm rates than the Shewhart S control chart and WV-S control chart when the underlying distributions are Weibull, lognormal and gamma. In terms of the probability of detection rates, the proposed SWV-S control chart is closer to S control chart with the exact method than those of the Shewhart S and WV-S control charts. 2016 Article PeerReviewed application/pdf en https://repo.uum.edu.my/id/eprint/19632/1/JTAIT%2091%201%20%202016%2061%2074.pdf Atta, Abdu Mohammed Ali and Shoraim, Majid H. A. and Syed Yahaya, Sharipah Soaad and Zain, Zakiyah and Ali, Hazlina (2016) A scaled weighted variance S control chart for skewed populations. Journal of Theoretical and Applied Information Technology, 91 (1). pp. 61-74. ISSN 1992-8645 http://www.jatit.org/volumes/Vol91No1/7Vol91No1.pdf |
| spellingShingle | QA75 Electronic computers. Computer science Atta, Abdu Mohammed Ali Shoraim, Majid H. A. Syed Yahaya, Sharipah Soaad Zain, Zakiyah Ali, Hazlina A scaled weighted variance S control chart for skewed populations |
| title | A scaled weighted variance S control chart for skewed populations |
| title_full | A scaled weighted variance S control chart for skewed populations |
| title_fullStr | A scaled weighted variance S control chart for skewed populations |
| title_full_unstemmed | A scaled weighted variance S control chart for skewed populations |
| title_short | A scaled weighted variance S control chart for skewed populations |
| title_sort | scaled weighted variance s control chart for skewed populations |
| topic | QA75 Electronic computers. Computer science |
| url | https://repo.uum.edu.my/id/eprint/19632/1/JTAIT%2091%201%20%202016%2061%2074.pdf |
| work_keys_str_mv | AT attaabdumohammedali ascaledweightedvariancescontrolchartforskewedpopulations AT shoraimmajidha ascaledweightedvariancescontrolchartforskewedpopulations AT syedyahayasharipahsoaad ascaledweightedvariancescontrolchartforskewedpopulations AT zainzakiyah ascaledweightedvariancescontrolchartforskewedpopulations AT alihazlina ascaledweightedvariancescontrolchartforskewedpopulations AT attaabdumohammedali scaledweightedvariancescontrolchartforskewedpopulations AT shoraimmajidha scaledweightedvariancescontrolchartforskewedpopulations AT syedyahayasharipahsoaad scaledweightedvariancescontrolchartforskewedpopulations AT zainzakiyah scaledweightedvariancescontrolchartforskewedpopulations AT alihazlina scaledweightedvariancescontrolchartforskewedpopulations |