On the use of partial confounding for the construction of alternative regular two-level blocked fractional factorial designs |
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Authors: | Mike Jacroux |
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Institution: | Department of Statistics, Washington State University, Pullman, WA 99164, United States |
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Abstract: | In this paper, we consider experimental situations in which a regular fractional factorial design is to be used to study the effects of m two-level factors using n=2m−k experimental units arranged in 2p blocks of size 2m−k−p. In such situations, two-factor interactions are often confounded with blocks and complete information is lost on these two-factor interactions. Here we consider the use of the foldover technique in conjunction with combining designs having different blocking schemes to produce alternative partially confounded blocked fractional factorial designs that have more estimable two-factor interactions or a higher estimation capacity or both than their traditional counterparts. |
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Keywords: | Design matrix Estimable effect Estimation capacity |
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