Guaranteed conditional performance of the S^2 control chart with estimated parameters
(2015) International Journal of Production Research — Vol. 53, n° 14, p. 4405-4413 (2015)
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- Abstract
- We evaluate the in-control performance of the S2 control chart with estimated parameters conditional on the Phase I sample. Simulation results indicate no realistic amount of Phase I data is enough to have confidence that the in-control average run length (ARL) obtained will be near the desired value. To overcome this problem, we adjust the S2 chart’s control limits such that the in-control ARL is guaranteed to be above a specified value with a certain specified probability. The required adjustment does not have too much of an adverse effect on the out-of-control performance of the chart.
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Faraz, A., Woodall, W. H., & Heuchenne, C. (2015). Guaranteed conditional performance of the S^2 control chart with estimated parameters. International Journal of Production Research, 53(14), 4405-4413. https://doi.org/10.1080/00207543.2015.1008112 (Original work published 2015)