한국품질경영학회:학술대회논문집 (Proceedings of the Korean Society for Quality Management Conference)
- 한국품질경영학회 2006년도 추계 학술대회
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- Pages.199-204
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- 2006
비정규 측정오차의 경우 측정시스템 변동과 PTR 추정
Estimations of Measurement System Variability and PTR under Non-normal Measurement Error
- Chang, Mu-Seong (Department of Industrial and Systems Engineering, Changwon National University) ;
- Kim, Sang-Boo (Department of Industrial and Systems Engineering, Changwon National University)
- 발행 : 2006.11.17
초록
ANOVA is widely used for measurement system analysis. It assumes that the measurement error is normally distributed, which may not be seen in some industrial cases. In this study, the estimates of the measurement system variability and PTR (precision-to-tolerance ratio) are obtained by using weighted standard deviation for the case where the measurement error is non-normally distributed. The Standard Bootstrap method is used for estimating confidence intervals of measurement system variability and PTR. The point and confidence interval estimates for the cases with normally distributed measurement error are compared to those with non-normally distributed measurement errors through computer simulation.
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