A Note on Average Run Lengths of Moving Average Control Charts

Zhang Lingyun, Lai C. D., Govindaraju K. and Bebbington M.
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Zhang Lingyun: Institute of Information Sciences and Technology, Massey University, Palmerston North, New Zealand
Lai C. D.: Institute of Information Sciences and Technology, Massey University, Palmerston North, New Zealand
Govindaraju K.: Institute of Information Sciences and Technology, Massey University, Palmerston North, New Zealand
Bebbington M.: Institute of Information Sciences and Technology, Massey University, Palmerston North, New Zealand

Stochastics and Quality Control, 2004, vol. 19, issue 1, 23-27

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.

Keywords: Moving Average Control Chart; ARL (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1515/EQC.2004.23

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