Abstract #300329

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JSM 2003 Abstract #300329
Activity Number: 50
Type: Contributed
Date/Time: Sunday, August 3, 2003 : 4:00 PM to 5:50 PM
Sponsor: Section on Quality & Productivity
Abstract - #300329
Title: Trace Plots: Do You Really Know Your Mixture?
Author(s): Sarah J. Kalicin*+
Companies: Kraft
Address: 200 DeForest Ave., East Hanover, NJ, 07936-2833,
Keywords: mixture experiement ; Cox directional trace plot ; Piepel trace plot
Abstract:

The traditional Cox and Piepel trace plots show how individual mixture components change the response over the design region. One difficulty is that they do not show how a component affects the response over its design range in relation to the proportions of the other components. Other issues that these trace plots do not address are: what are the corresponding component levels for a particular response level, how much do the other components vary over the design range for a particular relative proportion, or if the components amounts are staying within the design range in trace plots. This presentation proposes a new way of presenting trace plots using the Cox directional calculations, so that more information can be gained from a mixture analysis. These issues will be answered and addressed in this presentation, discussing how this new trace plot can reveal more information from a mixture design.

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Revised March 2003