A Note on Average Run Lengths of Moving Average Control Charts

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.

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Year of publication:	2004
Authors:	Lingyun, Zhang ; Lai C. D. ; Govindaraju K. ; Bebbington M.
Published in:	Economic Quality Control. - De Gruyter. - Vol. 19.2004, 1, p. 23-27
Publisher:	De Gruyter

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Extent:	text/html
Type of publication:	Article
Source:	RePEc - Research Papers in Economics

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