A Comparison of Three-level Orthogonal Arrays in the Presence of a Possible Correlation in Observations |
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| Authors: | E Kolaiti C Koukouvinos |
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| Institution: |
a Department of Mathematics, National Technical University of Athens, Greece |
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| Abstract: | When we want to compare two designs we usually assume the standard linear model with uncorrelated observations. In this paper we use the comparison method proposed by Ghosh & Shen (2006) to compare three level orthogonal arrays with 18, 27 and 36 runs under a possible presence of correlation in observations. |
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| Keywords: | Correlation in observations linear model orthogonal arrays optimal design change of variance functions |
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