Selection of Sample Size in R&R Analysis of Variable Measuring System

Abstract:

Measurement System Analysis is of vital importance in a Six Sigma project. Variable measurement system takes the advantage of being practical and efficient. This paper focuses on the effect of sample size selection on error estimation of repeatability and reproducibility(R&R). After the discussion about the interval estimation of relevant statistics of R&R, this paper continues to analyze how the confidence interval is influenced by the number of operators, the number of samples and times of repeating measurements and a reasonable sample size in assessing the R&R of a measuring system is established for more effectiveness and efficiency.

• Periodical: Advanced Materials Research (Volume 422)
• Pages: 282-285
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.422.282
• Online since: December 2011
• Authors: Hui Zhen Zhao, Ju Tao Zhang, Zhong Shan Li
• Keywords: Fluctuation, Measurement System, R&R, Selection of Sample Size

References

[1] YanZhao:Methods and Application on Attribute Measurement System Analysi-s. Thesis of Tianjin university, 1(2007), (In Chinese)

[2] Liangxin Shi,Zhen He: Selection of Sample Size in R&R Analysis of Measuring System. Industrial Engineering Journal，11(2007) ,P100( In Chinese)

[3] Mandel J: Repeatability and reproducibility [J]. Journal of Quality, 1972, 4(2), P74

[4] Zhen He: Confidence Intervals for Variance Components [J]. Journal of Tianjin University 11(2006), P402 (In Chinese)