When a- and d-oftimality conflict

When a- and d-oftimality conflict

Let . be an m≠1 vector of unknown parameters. We consider a situation where, within a class of two unbiased estimators is D-optimal and is A-optimal. For example, such a situation arises in reliability studies (Srivastava, 1986). We present some results on comparing the variances of the unbiased est...

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Veröffentlicht in:Communications in statistics. Theory and methods 1987-01, Vol.16 (6), p.1675-1682
Hauptverfasser: Srivastava, J.N., Siddiqui, M.M.
Format: Artikel
Sprache:eng
Schlagworte:
Contrasts
Means
More Efficient
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Zusammenfassung:Let . be an m≠1 vector of unknown parameters. We consider a situation where, within a class of two unbiased estimators is D-optimal and is A-optimal. For example, such a situation arises in reliability studies (Srivastava, 1986). We present some results on comparing the variances of the unbiased estimators of certain interesting linear functions .
ISSN:0361-0926
1532-415X
DOI:10.1080/03610928708829461