Design of the synthetic-X control chart
The Xbar chart is widely used to monitor the mean of a quality characteristic xbar. This chart decides the process status based on the magnitude of the sample mean xbar and is effective for detecting large mean shifts. The Exponentially Weighted Moving-Average (EWMA) control chart is another control...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
2012
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/50194 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | The Xbar chart is widely used to monitor the mean of a quality characteristic xbar. This chart decides the process status based on the magnitude of the sample mean xbar and is effective for detecting large mean shifts. The Exponentially Weighted Moving-Average (EWMA) control chart is another control chart used to detect the occurrence of a shift in a process mean and is effective for detecting small mean shifts. This report proposes the Synthetic-Xbar chart. The results of the performance studies show that Synthetic-Xbar chart always outperforms the Xbar chart and is easier to design and operate as compared to the EWMA chart. |
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