Summary
The present paper presents another proof of the known result that the necessary best estimator of order two does not exist for the most general class of linear homogeneous unbiased estimators.
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Prabhu-Ajgaonkar, S.G. A note on necessary best estimator of order two. Metrika 31, 1–4 (1984). https://doi.org/10.1007/BF01915176
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DOI: https://doi.org/10.1007/BF01915176