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| Title: | 最小成本下，規格及X-bar-S管制圖之設計
The design of specification and X-bar-S charts with minimal cost |
| Authors: | 沈依潔
Shen, I Chieh |
| Contributors: | 楊素芬
沈依潔
Shen, I Chieh |
| Keywords: | 經濟統計管制圖
顧客允差
生產者允差
X-bar-S管制圖
損失函數
Economic statistical control charts
Consumer tolerance
Producer tolerance
X-bar and S charts
Loss function |
| Date: | 2011 |
| Issue Date: | 2012-10-30 10:13:37 (UTC+8) |
| Abstract: | 最小成本下，規格及X-bar-S管制圖之設計
The design of economic statistical control charts and specification are both crucial research areas in industry. Furthermore, the determination of consumer and producer specifications is important to producer. In this study, we consider eight cost models including the consumer loss function and/or the producer loss function with the economic statistical X-bar and S charts or Shewhart-type economic X-bar and S charts. To determine the design parameters of the X-bar and S charts and consumer tolerance and/or producer tolerance, we using the Genetic Algorithm to minimizing expected cost per unit time. In the comparison of examples and sensitivity analyses, we found that the optimal design parameters of the Shewhart-type economic X-bar and S charts are similar to those of economic statistical X-bar and S control charts, and the expected cost per unit time may lower than the actual cost per unit time when the cost model only considering consumer loss or producer loss. When considering both consumer and producer tolerances in the cost model, the design parameters of the economic X-bar and S charts are not sensitive to the cost models. If the producer tolerance is smaller than the consumer tolerance, and the producer loss is smaller than the consumer loss, the optimal producer tolerance should be small. |
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| Description: | 碩士
國立政治大學
統計研究所
99354026
100 |
| Source URI: | http://thesis.lib.nccu.edu.tw/record/#G0099354026 |
| Data Type: | thesis |
| Appears in Collections: | [統計學系] 學位論文
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