TY - JOUR T1 - Effect of Measurement Errors on a Class of Estimators of Population Mean Using Auxiliary Information in Sample Surveys TT - اثر خطاهای اندازه‌گیری بر روی رده‌ای از براوردگرهای میانگین جامعه با استفاده از اطلاعات کمکی در آماگیری‌های نمونه‌ای JF - srtc-jsri JO - srtc-jsri VL - 4 IS - 2 UR - http://jsri.srtc.ac.ir/article-1-174-en.html Y1 - 2008 SP - 175 EP - 189 KW - study variate KW - auxiliary variatc KW - measurement errors KW - bias KW - mean squared error. N2 - We consider the problem of estimation the population mean of the study variate Y in presence of measurement errors when information on an auxiliary character X is known. A class of estimators for population means using information on an auxiliary variate X is defined. Expressions for its asymptotic bias and mean square error are obtained. Optimum conditions are obtained for which the mean square errors of the proposed class of estimators are minimum. M3 10.18869/acadpub.jsri.4.2.175 ER -