Stimatori col metodo della regressione in caso di non rispondenti con un campionamento doppio

Abstract

The aim of this paper is to study the procedures to estimate the mean of a variable in presence of non-respondents in a first sampling using the informations of a seconde sample among the non-respondents and the informations regarding the means of one or more auxiliaries variables. It is shown the variance of the regression estimator. Then it is proposed the estimation of the parameters of the linear model using the information of the first and the second sample.