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基于分层多阶段样本的独立性与拟合优度近似检验AI 解读

The impact on linear statistics of the sample design used in obtaining survey data is the subject of much of sampling literature. Recently, more attention has been paid to the design's impact on nonlinear statistics; the major factor inhibiting these investigations has been the problem of estimating at least the first two moments of such statistics. The present article examines the problem of estimating the variances of nonlinear statistics from complex samples, in the light…

相关回答方差的一种改进估计方法AI 解读

Hansen, Hurwitz and Bershad [3] have provided an estimator for the correlated response variance based on the interpenetration of a sample of interviewers' assignments. This article provides a second estimator of the correlated response variance based on the work of all interviewers (those working on interpenetrated assignments as well as the other interviewers). Under certain specified conditions the two estimators are uncorrelated so that an appropriate linear combination…