Proceedings of the Korean Society for Quality Management Conference (한국품질경영학회:학술대회논문집)

Korean Society for Quality Management (한국품질경영학회)
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A STUDY ON PROCESS CAPABILITY INDICES FOR NON-NORMAL DATA

  • Kwon Seungsoo (Dept. of Statistics, Seoul National University) ;
  • Park Sung H. (Dept. of Statistics, Seoul National University) ;
  • Xu Jichao (Dept. of Industrial Engineering Zhengzhou Institute of Aeronautics)
  • Published : 1998.11.01
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Abstract

Quality characteristics on the properties of process capability indices (PCIs) are often required to be normally distributed. But, if a characteristic is not normally distributed, serious errors can result from normal-based techniques. In this case, we may well consider the use of new PCIs specially designed to be robust for non-normality. In this paper, a newly proposed measure of process capability is introduced and compared with existing PCIs using the simulated non-normal data.

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