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Unbiasedness is probably the best known criterion for evaluating the performance of estimators. This note describes unbiasedness, demonstrating various failings of the criterion. It is shown that unbiased estimators might not exist, or might not be unique; an example of a unique but clearly unacceptable unbiased estimator is given. It is shown that unbiased estimators are not translation invariant. Various alternative criteria are described, and are illustrated through examples.
Publication type Book chapter
Publication Subtype Book Chapter
Title Unbiasedness
Year Published 1998
Language English
Publisher John Wiley and Sons
Publisher location Chichester, U.K.
Contributing office(s) Patuxent Wildlife Research Center
Description 6 volumes. lxii, 4898
Larger Work Type Book
Larger Work Subtype Other Government Series
Larger Work Title Encyclopedia of Biostatistics, v. 6
First page 4648
Last page 4650
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