| 多变异分析的方差分量置信区间 |
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| 引用本文： | 何桢,刘晓亮. 多变异分析的方差分量置信区间[J]. 天津大学学报(社会科学版), 2006, 8(6): 401-404 |
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| 作者姓名： | 何桢 刘晓亮 |
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| 作者单位： | 天津大学管理学院,天津,300072 |
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| 基金项目： | 国家自然科学基金;教育部跨世纪优秀人才培养计划;天津市科技攻关项目 |
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| 摘 要： | 多变异分析是查找过程变异源及分析其规律的重要方法,是持续质量改进中的重要环节。多变异分析将过程质量特征值的变异分成三类:时间变异、产品间变异和产品内变异。时间变异是指在不同时点抽取的样本质量特征值的变异;产品间变异是指在同一时点抽取的不同样本之间质量特征值的
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| 关 键 词： | 多变异分析 方差分量 置信区间 修正的大样本方法 |
| 文章编号： | 1008-4339(2006)06-0401-04 |
| 修稿时间： | 2006-05-16 |
Confidence Intervals for Variance Components Based on Multi-Vari Analysis |
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| HE Zhen,LIU Xiao-liang. Confidence Intervals for Variance Components Based on Multi-Vari Analysis[J]. Journal of Tianjin University(Social Sciences), 2006, 8(6): 401-404 |
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| Authors: | HE Zhen LIU Xiao-liang |
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| Abstract: | In multi-vari analysis(MVA),the variation sources of product/process quality characteristics are divided into time to time variation,piece to piece variation and within piece variation.But for the time to time and the piece to piece variance components,an expression for the distribution of their linear combination of chi-square random variables cannot be obtained.Thus,an exact confidence interval for them cannot be constructed.In this paper,approximate procedures are given.Based on the statistical model of MVA and the approximate procedures,the approximate confidence intervals of these two variance components are discussed. |
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| Keywords: | multi-vari analysis variance component confidence interval modified large-sample method |
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