Journal of the Korean Data and Information Science Society

The Korean Data and Information Science Society (한국데이터정보과학회)
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Switching properties of CUSUM charts for controlling mean vector

  • Chang, Duk-Joon (Department of Statistics, Changwon National University) ;
  • Heo, Sun-Yeong (Department of Statistics, Changwon National University)
  • Received : 2012.06.30
  • Accepted : 2012.07.24
  • Published : 2012.07.31
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Abstract

Some switching properties of multivariate control charts are investigated when the interval between two consecutive sample selections is not fixed but changes according to the result of the previous sample observation. Many articles showed that the performances of variable sampling interval control charts are more efficient than those of fixed sampling interval control charts in terms of average run length (ARL) and average time to signal (ATS). Unfortunately, the ARL and the ATS do not provide any information on how frequent a switch is being made. We evaluate several switching properties of two sampling interval Shewhart and CUSUM procedures for controlling mean vector of correlated quality variables.

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References

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