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OLS Field Name OLS Field Data
Main Title Comparison of Variance Estimators of the Horvitz-Thompson Estimator for Randomized Variable Probability Systematic Sampling.
Author Stehman, S. V. ; Overton, W. S. ;
CORP Author State Univ. of New York Coll. of Environmental Science and Forestry, Syracuse. ;Oregon State Univ., Corvallis.;Corvallis Environmental Research Lab., OR.
Publisher Mar 94
Year Published 1994
Report Number EPA-R-815422 ;EPA-R-816721; EPA/600/J-94/292;
Stock Number PB94-191186
Additional Subjects Environmental surveys ; Sampling ; Statistical analysis ; Streams ; Water pollution ; Variance(Statistics) ; Comparison ; Probability theory ; Study estimates ; Empirical equations ; Population(Statistics) ; Reprints ; National Stream Surveys ; Environmental Monitoring and Assessment Program ; Horvitz-Thompson estimation ; Yates-Grundy estimation
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NTIS  PB94-191186 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/11/1994
Collation 14p
Abstract
Two large-scale environmental surveys, the National Stream Survey (NSS) and the Environmental Protection Agency's proposed Environmental Monitoring and Assessment Program (EMAP), motivated investigation of estimators of the variance of the Horvitz-Thompson estimator under variable probability systematic sampling. As is common in practice, survey objectives required special design and analysis features that strongly influenced selection of a variance estimator. In this article we investigate properties of the variance estimator used in the NSS and proposed for some applications in EMAP. (Copyright (c) 1994 American Statistical Association.)