Abstract #301748

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JSM 2002 Abstract #301748
Activity Number: 180
Type: Contributed
Date/Time: Tuesday, August 13, 2002 : 8:30 AM to 10:20 AM
Sponsor: Section on Physical & Engineering Sciences*
Abstract - #301748
Title: Constructing Optimal Resolution IV Designs with Odd-Length Words
Author(s): Robert Mee*+ and Robert Block
Affiliation(s): University of Tennessee and University of Tennessee
Address: SMC 332, Knoxville, Tennessee, 37996-0532, USA
Keywords: fractional factorial design ; defining relation ; minimum aberration ; word length pattern
Abstract:

We propose methods for constructing 2^k-p (=n) resolution IV designs with odd length words for k = (5/16)n or fewer factors. While even resolution IV designs are limited to estimating fewer than n/2 two-factor interactions (in addition to the k main effects), resolution IV designs with odd-length words in the defining relation may devote all or nearly all of their degrees of freedom to main effects and two-factor interactions. Families of these designs are constructed by deleting factors from and/or adding factors to an initial resolution IV design. Numerous examples will be presented.

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Revised March 2002