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Publikováno v:
Journal of the American Statistical Association. 70:5
(1975). Standards for Discussion and Presentation of Errors in Survey and Census Data. Journal of the American Statistical Association: Vol. 70, No. 351b, pp. 5-23.
Autor:
Jack L. Ogus
Publikováno v:
Journal of the American Statistical Association. 64:1350
This note presents a simple proof that the Horvitz-Thompson estimator (where πi is the total probability of selecting unit i over all possible samples), satisfies Ajgaonkar's criterion for the “necessary best estimator” for all sample designs.