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通过回归合并多项调查信息以提高小域估计效率AI 解读

Summary In sample surveys of finite populations, subpopulations for which the sample size is too small for estimation of adequate precision are referred to as small domains. Demand for small domain estimates has been growing in recent years among users of survey data. We explore the possibility of enhancing the precision of domain estimators by combining comparable information collected in multiple surveys of the same population. For this, we propose a regression method of…

合并多个调查的独立回归估计量AI 解读

Efficient generalized regression (GREG) procedures are proposed for the combination of comparable information collected independently from multiple surveys of the same population. In particular, for combination through alignment of estimated totals of common target characteristics, an efficiency improvement of Zieschang's original composite GREG method is developed, involving a correction of the GREG estimation for different effective sample sizes in a multiple-sample…