Pseudo-Bayesian A-optimal designs for estimating the point of maximum in component-amount Darroch–Waller mixture model

N.K. Mandal, Manisha Pal and M.L. Aggarwal

Statistics & Probability Letters, 2012, vol. 82, issue 6, 1088-1094

Abstract: In the analysis of experiments with mixture, quadratic models have been widely used. Several authors considered finding optimum designs for the estimation of the parameters of the model. The optimum designs for the estimation of optimum mixing proportions in Scheffé’s quadratic mixture model has been studied by Pal and Mandal (2006) and Mandal et al. (2008a,b) using a pseudo-Bayesian approach. In this paper, we consider an additive quadratic mixture model, proposed by Darroch and Waller (1985), when the amount of mixture is taken into account, and obtain the A-optimal designs for the estimation of optimum proportions, adopting the approach of Pal and Mandal (2006). We show that, besides other support points, the origin and the vertices of the simplex are necessarily the support points of the optimum design.

Keywords: Mixture experiment; Darroch–Waller model; Non-linear parametric function; Asymptotic efficiency; A-optimal design (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1016/j.spl.2012.02.011

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