Publicação: Some practical advice on polynomial regression analysis from blocked response surface designs
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2000-01-01
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Marcel Dekker Inc
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It is often necessary to run response surface designs in blocks. In this paper the analysis of data from such experiments, using polynomial regression models, is discussed. The definition and estimation of pure error in blocked designs are considered. It is recommended that pure error is estimated by assuming additive block and treatment effects, as this is more consistent with designs without blocking. The recovery of inter-block information using REML analysis is discussed, although it is shown that it has very little impact if thc design is nearly orthogonally blocked. Finally prediction from blocked designs is considered and it is shown that prediction of many quantities of interest is much simpler than prediction of the response itself.
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Inglês
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Communications In Statistics-theory and Methods. New York: Marcel Dekker Inc., v. 29, n. 9-10, p. 2157-2180, 2000.
