التفاصيل البيبلوغرافية
| العنوان: |
Side sensitive group runs t chart and its application in manufacturing. |
| المؤلفون: |
Saha, Sajal, Khoo, Michael B. C., Mim, Faijun Nahar, Ng, Theam Foo, Khaw, Khai Wah |
| المصدر: |
Communications in Statistics: Simulation & Computation; 2023, Vol. 52 Issue 9, p4036-4051, 16p |
| مصطلحات موضوعية: |
QUALITY control charts, MOVING average process, STANDARD deviations |
| الشركة/الكيان: |
ASSOCIATION of Research Libraries |
| مستخلص: |
A setback of the X ¯ type charts is that they signal out-of-control when the process standard deviation is not stable, i.e., they are not robust against estimation errors or changes in the process standard deviation. Thus, the t type charts were introduced to overcome this setback. In this study, the side sensitive group runs (SSGR) t chart is proposed for monitoring the process mean. The implementation, optimal designs and performance of the proposed SSGR t chart are discussed. The average run length (ARL) and expected ARL (EARL) criteria are used to evaluate and compare the performance of the proposed SSGR t chart with that of the existing synthetic (Syn) t, exponentially weighted moving average (EWMA) t and run sum (RS) t charts. Results show that the SSGR t chart outperforms the Syn t chart for all sizes of mean shifts, while the EWMA t and RS t charts are better for small shifts. A real manufacturing example is used to illustrate the implementation of the proposed SSGR t chart. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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