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.
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Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R ChinaChinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
Li, Yongjin
Wang, Qihua
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Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
Shenzhen Univ, Inst Stat Sci, Shenzhen, Guangdong, Peoples R ChinaChinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
Wang, Qihua
Zhu, Liping
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Renmin Univ China, Inst Stat & Big Data, Beijing, Peoples R ChinaChinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
Zhu, Liping
Ding, Xiaobo
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Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R ChinaChinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China