Adjusted X control chart by Edgeworth Expansion
碩士 === 銘傳大學 === 應用統計資訊學系碩士班 === 103 === X control chart is powerful tool to monitor the process mean, but it is not good detector when the process distribution is unknown. Zou and Wang(2005) propose a robust X control chart on the Cornish-Fisher expansion. They compare various control charts when pa...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2014
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| Online Access: | http://ndltd.ncl.edu.tw/handle/08320824116741524289 |
| Summary: | 碩士 === 銘傳大學 === 應用統計資訊學系碩士班 === 103 === X control chart is powerful tool to monitor the process mean, but it is not good detector when the process distribution is unknown. Zou and Wang(2005) propose a robust X control chart on the Cornish-Fisher expansion. They compare various control charts when parameter is known. However, there is no information about process parameters in some situations. Hence, we propose some estimates for parameter to adjust the X control chart. The new Edgeworth control charts are compared by simulation with Shewhart X control chart, Weighted-Variance control chart and Percentile Bootstrap control chart.
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