Average Run Lengths of EWMA Control Charts for Monitoring a Process Standard Deviation
- 1 January 1992
- journal article
- research article
- Published by Taylor & Francis in Journal of Quality Technology
- Vol. 24 (1), 44-50
- https://doi.org/10.1080/00224065.1992.11979373
Abstract
A program is presented that generates a table of ARL's for a one-sided EWMA control chart on a process standard deviation. The combination of smoothing parameter λ and constant upper control limit multiplier K that produces the minimum ARL for a specified increase in the standard deviation can be determined from that table.Keywords
This publication has 4 references indexed in Scilit:
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