Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

An Economic‐Statistical Design of Moving Average Control Charts

An Economic‐Statistical Design of Moving Average Control Charts Control charts are important tools of statistical quality control. In 1956, Duncan first proposed the economic design of x ‐control charts to control normal process means and insure that the economic design control chart actually has a lower cost, compared with a Shewhart control chart. An moving average (MA) control chart is more effective than a Shewhart control chart in detecting small process shifts and is considered by some to be simpler to implement than the CUSUM. An economic design of MA control chart has also been proposed in 2005. The weaknesses to only the economic design are poor statistics because it does not consider type I or type II errors and average time to signal when selecting design parameters for control chart. This paper provides a construction of an economic‐statistical model to determine the optimal parameters of an MA control chart to improve economic design. A numerical example is employed to demonstrate the model’s working and its sensitivity analysis is also provided. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Asian Journal on Quality Emerald Publishing

An Economic‐Statistical Design of Moving Average Control Charts

Loading next page...
 
/lp/emerald-publishing/an-economic-statistical-design-of-moving-average-control-charts-WxgeGmhDdh
Publisher
Emerald Publishing
Copyright
Copyright © 2006 Emerald Group Publishing Limited. All rights reserved.
ISSN
1598-2688
DOI
10.1108/15982688200600032
Publisher site
See Article on Publisher Site

Abstract

Control charts are important tools of statistical quality control. In 1956, Duncan first proposed the economic design of x ‐control charts to control normal process means and insure that the economic design control chart actually has a lower cost, compared with a Shewhart control chart. An moving average (MA) control chart is more effective than a Shewhart control chart in detecting small process shifts and is considered by some to be simpler to implement than the CUSUM. An economic design of MA control chart has also been proposed in 2005. The weaknesses to only the economic design are poor statistics because it does not consider type I or type II errors and average time to signal when selecting design parameters for control chart. This paper provides a construction of an economic‐statistical model to determine the optimal parameters of an MA control chart to improve economic design. A numerical example is employed to demonstrate the model’s working and its sensitivity analysis is also provided.

Journal

Asian Journal on QualityEmerald Publishing

Published: Dec 18, 2006

Keywords: MA control chart; Time to signal; Economic‐statistics design

There are no references for this article.