The authors consider variance estimation for the generalized regression estimator in a two-phase context when the first-phase sample has been restratified using information gathered from the first-phase sample. Simple computational expressions for variance estimation are provided for the double expansion estimator and the reweighted expansion estimator of Kott & Stukel (1997). These estimators are compared using data from the Canadian Retail Commodity Survey.
机构:
Iowa State Univ, Dept Stat, Ctr Survey Stat & Methodol, Ames, IA 50011 USAIowa State Univ, Dept Stat, Ctr Survey Stat & Methodol, Ames, IA 50011 USA
Kim, Jae Kwang
Yu, Cindy Long
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机构:
Iowa State Univ, Dept Stat, Ctr Survey Stat & Methodol, Ames, IA 50011 USAIowa State Univ, Dept Stat, Ctr Survey Stat & Methodol, Ames, IA 50011 USA