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Additional comparisons of designs to estimate variance components in a two-way classification model
Authors:HD Muse  RL Anderson  B Thitakamol
Institution:1. Department of Mathematics and Computer Science , Middle Tennessee State University , Murfreesboro, Tennessee, 37132;2. College of Agriculture , University of Kentucky , Lexington, Kentucky, 40546;3. Northeast Agricultural Regional Office , Klion-Kaen, Thailand
Abstract:In this paper, the research of Muse and Anderson is extended to include additional comparisons of designs, featuring planned unbalance, for the estimation of variance components in a two-way cross classification model. Their results are extended to Include the following: (i) a small sample study of the original off-diagonal (OD) design and (ii) an asymptotic maximum likelihood investigation of three modifica-tions of the balanced diagonal rectangles (BD) design and one modification of the 01) design to permit the estimation of row, column, interaction and error variance components. Also a general iterative least.
Keywords:variance components  unbalanced designs  maximum likelihood estimators  iterated least squares  two-way classification models
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