Abstract
We recall Godambe’s theorem on the nonexistence of an umvue in finite population sampling for estimation of a population total and that the existence of a uniformly minimum mse estimator without any further conditions is not possible. Assuming model-unbiasedness with respect to a well known super population model, we give an alternative derivation of Royall’s optimum estimator. Finally, the role of design unbiasedness criterion is briefly discussed.
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Rao, T.J. Homogeneous Linear Estimator and Optimality in Finite Population Sampling. J Stat Theory Pract 7, 1–7 (2013). https://doi.org/10.1080/15598608.2013.756263
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DOI: https://doi.org/10.1080/15598608.2013.756263