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A New EWMA Control Chart for Monitoring Both Location and Dispersion

Authors :
Gemai Chen
Smiley W. Cheng
Hansheng Xie
Source :
Quality Technology & Quantitative Management. 1:217-231
Publication Year :
2004
Publisher :
Informa UK Limited, 2004.

Abstract

A new control chart, which employs the exponentially weighted moving average (EWMA) technique, is proposed. The statistic for the chart defines the area below a straight line as the control region, which makes the charting procedure easier than the usual approach. This chart can effectively monitor the process mean and the increased process variability simultaneously, and can detect the source and the direction of a change easily.

Subjects

Subjects :
Information Systems and Management
Computer science
X-bar chart
Process (computing)
Management Science and Operations Research
Chart
Management of Technology and Innovation
Industrial relations
Statistics
Statistical dispersion
Control chart
EWMA chart
Business and International Management
Process variability
Algorithm
Statistic

Details

ISSN :
16843703
Volume :
1
Database :
OpenAIRE
Journal :
Quality Technology & Quantitative Management
Accession number :
edsair.doi...........bb6b1dcd32a6bd75cae7f9753d4b5fd4

Tools

Authors Abstract Subjects Details