The problem of estimating the population mean using calibration estimators when some observations on the study and auxiliary characteristics are missing from the sample, is considered. Some new classes of estimators are proposed for any sampling design. These new classes employ to all observation (incomplete cases too) in the estimation without using any imputation techniques. On the basis of properties derived and some simulation results, the proposed estimators are compared with other complete case estimators. (C) 2005 Elsevier B.V. All rights reserved.
机构:
Univ Teknol Malaysia, Fac Comp, Johor Baharu 81310, MalaysiaUniv Tunku Abdul Rahman, Lee Kong Chian Fac Engn & Sci, Dept Math & Actuarial Sci, Kajang 43000, Malaysia
机构:
Yunnan Univ, Dept Stat, Kunming 650091, Peoples R China
Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R ChinaYunnan Univ, Dept Stat, Kunming 650091, Peoples R China
Liu, Xu
Liu, Peixin
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Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R ChinaYunnan Univ, Dept Stat, Kunming 650091, Peoples R China
Liu, Peixin
Zhou, Yong
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Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
Shanghai Univ Finance & Econ, Sch Stat & Management, Shanghai 200433, Peoples R ChinaYunnan Univ, Dept Stat, Kunming 650091, Peoples R China