Optimal designs for testing the functional form of a regression via nonparametric estimation techniques
Stefanie Biedermann and
Holger Dette
Statistics & Probability Letters, 2001, vol. 52, issue 2, 215-224
Abstract:
For the problem of checking linearity in a heteroscedastic nonparametric regression model under a fixed design assumption, we study maximin designs which maximize the minimum power of a nonparametric test over a broad class of alternatives from the assumed linear regression model. It is demonstrated that the optimal design depends sensitively on the used estimation technique (i.e. weighted or ordinary least-squares) and on an inner product used in the definition of the class of alternatives. Our results extend and put recent findings of Wiens (Statist. Probab. Lett. 12 (1991) 217) in a new light, who established the maximin optimality of the uniform design for lack-of-fit tests in homoscedastic multiple linear regression models.
Keywords: Goodness-of-fit; test; Weighted; least-squares; Optimal; design; Maximin; optimality; D1-optimality (search for similar items in EconPapers)
Date: 2001
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Citations: View citations in EconPapers (7)
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