Journal of Korean Society for Quality Management (품질경영학회지)

Korean Society for Quality Management (한국품질경영학회)
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An Economic Statistical Design of the EWMA Control Charts with Variable Sampling Interval

VSI EWMA 관리도의 경제적 통계적 설계

  • 송서일 (동아대학교 산업시스템공학과) ;
  • 박현규 (동아대학교 산업시스템공학) ;
  • 정혜진 (동아대학교 산업시스템공학과)
  • Published : 2004.03.01
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Abstract

Tris paper present an economic statistical design which have statistically constraints for the optimal design of an EWMA control charts with variable sampling interval. Cost function use that proposed by Lorenzen and Vance, and the optimal design parameters include the sample size, control limit width, sampling interval, EWMA weight value. Comparisons between VSI EWMA control charts optimal economic design and optimal economic statistical designs show the following fact. Although have demerits which are more costly than economic design, have merits which to detect shifts more efficiently and to improve statistical performance.

Keywords

References

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