Joint X and R Charts with Variable Sample Sizes and Sampling Intervals

dc.contributor.author	Costa, Antonio F.B.
dc.date.accessioned	2014-06-09T16:24:59Z
dc.date.available	2014-06-09T16:24:59Z
dc.date.issued	1996
dc.description.abstract	Recent studies have shown that the chart with variable sampling intervals (VSI) and/or with variable sample sizes(VSS) detects process shifts faster that the traditional chart. This article extends these studies for processes that are monitored by both, the and the R charts. A Markov chain model is used to determine the properties of the joint and R charts with variable sample sizes and sampling intervals (VSSI) scheme improves the joint and R control chart performance (in terms of the speed with which process mean and/or variance shifts are detected).	en
dc.identifier.citation	Journal of Quality Technology, April 1997, Vol. 29, No. 2, pp. 197-204	en
dc.identifier.uri	http://digital.library.wisc.edu/1793/69171
dc.title	Joint X and R Charts with Variable Sample Sizes and Sampling Intervals	en
dc.type	Article	en

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