Abstract #300471

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JSM 2002 Abstract #300471
Activity Number: 321
Type: Contributed
Date/Time: Wednesday, August 14, 2002 : 12:00 PM to 1:50 PM
Sponsor: Section on Quality & Productivity*
Abstract - #300471
Title: A Multivariate Control Chart for Expected Changes Over Time
Author(s): Neil Schwertman*+ and Thomas Ryan and Robiah Adnan
Affiliation(s): California State University, Chico and Consultant and University of Technology Malaysia
Address: Holt Hall , Chico, California, 95929-0525, USA
Keywords: linear regression ; dynamic ; quality improvement
Abstract:

A new procedure is proposed that merges the methodologies of regression control charts and multivariate control charts. The simulation of this procedure shows that this new control chart can be very effective in detecting even modestly larger than expected changes in several monitored variables, which are subject to some naturally occurring changes over time.

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Revised March 2002