Variance estimation for unequal probability sampling |
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| Authors: | Guohua Zou |
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| Affiliation: | (1) Institute of Systems Science, Chinese Academy of Sciences, Beijing 100080, P.R. China (e-mail: ghzou@iss01.iss.ac.cn), CN |
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| Abstract: | In this paper, we discuss the optimality of the variance estimator of the Horvitz-Thompson estimator proposed by Kott (1988)
in the class of model-unbiased quadratic estimators. We also propose some improved estimators over Kott's estimator in the
class of general quadratic estimators.
Received: February 1999 |
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| Keywords: | : Superpopulation model variance estimation model-unbiased estimator quadratic estimator |
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