Variance dispersion graphs for comparing blocked response surface designs
Nenhuma Miniatura disponível
Data
1998-01-01
Autores
Trinca, Luzia A. [UNESP]
Gilmour, Steven G.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
In this paper, we extend the use of the variance dispersion graph (VDG) to experiments in which the response surface (RS) design must be blocked. Through several examples we evaluate the prediction performances of RS designs in non-orthogonal block designs compared with the equivalent unblocked designs and orthogonally blocked designs. These examples illustrate that good prediction performance of designs in small blocks can be expected in practice. Most importantly, we show that the allocation of the treatment set to blocks can seriously affect the prediction properties of designs; thus, much care is needed in performing this allocation.
Descrição
Palavras-chave
Blocking, Box-Behnken Designs, Central Composite Designs, D-Optimality, Prediction
Como citar
Journal of Quality Technology, v. 30, n. 4, p. 314-327, 1998.