Edgeworth expansions for two-stage sampling with applications to stratified and cluster sampling
نویسندگان
چکیده
A two-term Edgeworth expansion for the standardized version of the sample total in a two-stage sampling design is derived. In particular, for the commonly used stratified and cluster sampling schemes, formal two-term asymptotic expansions are obtained for the Studentized versions of the sample total. These results are applied in conjunction with the bootstrap to construct more accurate confidence intervals for the unknown population total in such sampling schemes. The Canadian Journal of Statistics 43: 578–599; 2015 © 2015 The Authors. The Canadian Journal of Statistics published by Wiley Periodicals, Inc. on behalf of Statistical Society of Canada Résumé: Les auteurs présentent un développement en deux termes d’une série d’Edgeworth pour l’estimateur du total basé sur un plan échantillonnal à deux phases. Ils obtiennent en particulier des développements asymptotiques formels pour la version studentisée du total échantillonnal basé sur un échantillonnage stratifié et sur un échantillonnage en grappes. Les auteurs utilisent ces résultats et des méthodes de rééchantillonnage afin de construire des intervalles de confiance plus précis pour le total de la population dans le contexte de ces plans d’échantillonnage. La revue canadienne de statistique 43: 578–599; 2015 © 2015 Les auteurs. La revue canadienne de statistique, publiée par Wiley Periodicals Inc. au nom de la Société statistique du Canada
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