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Poisson EWMA Control Charts

Summary: An exponentially weighted moving average control chart for monitoring Poisson data is introduced. The charting procedure is evaluated using a Markov chain approximation, and its average run length is compared to other procedures for Poisson data. Figures are given for the user to select the value of the upper control limit that gives the desired in-control average run length.

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  • Topics:
  • Keywords: Average run length (ARL),Poisson distribution,Exponentially weighted moving average control charts (EWMA)
  • Author: Borror, Connie M.; Champ, Charles W.; Rigdon, Steven E.
  • Journal: Journal of Quality Technology