Some as-optimal designs and their a-efficiencies |
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| Authors: | S Huda |
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| Institution: | Department of Statistics , King Saud University , P.O. Box 2455, Riyadh , 11451 , Saudi Arabia |
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| Abstract: | For polynomial regression over spherical regions, the d-th order As-optimal designs for γ-th order models are derived for 4 ≥ d > γ≥l. Efficiencies of these designs with respect to the γ-th order A-optimal designs are obtained. Furthermore, the effects of estimating intermediate m-th order models on these efficiencies are examined for d > m > γ |
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| Keywords: | A-efficiency As:-optimal designs polynomial regression rotatable designs spherical regions |
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