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A Note on Average Run Lengths of Moving Average Control Charts

Author

Listed:
  • Zhang Lingyun
  • Lai C. D.
  • Govindaraju K.
  • Bebbington M.

    (Institute of Information Sciences and Technology, Massey University, Palmerston North, New Zealand)

Abstract

Using a counter example, we show that the formula for computing the Average Run Lengths (ARL) of a moving average control chart (MA) in Wetherill and Brown (1991) is incorrect. However, we conjecture that the formula may provide an upper bound for the ARL of a moving average control chart.

Suggested Citation

  • Zhang Lingyun & Lai C. D. & Govindaraju K. & Bebbington M., 2004. "A Note on Average Run Lengths of Moving Average Control Charts," Stochastics and Quality Control, De Gruyter, vol. 19(1), pages 23-27, January.
    • Handle: RePEc:bpj:ecqcon:v:19:y:2004:i:1:p:23-27:n:5
    DOI: 10.1515/EQC.2004.23
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