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In statistical surveys, if the measurements of sampling units according to the variable under consideration is expensive in all sense, and if itis possible to rank sampling units according to the same variable by means ofa method which is not expensive at all, in those cases, Ranked Set Sampling(RSS) is a more e¢ cient sampling method than the Simple Random Sampling(SRS) to estimate the population mean. In this study, the egects of using RSSin multiple linear regression analysis are considered in terms of estimation ofmodel parameters. Firstly, according to RSS and SRS the estimates of multipleregression model parameters are obtained and then the egects concerning thevariances of the estimators are investigated by Monte Carlo simulation studybased on Relative E¢ ciency (RE) measure. It is shown that the estimatorsobtained based on RSS are more e¢ cient than the estimators based on SRSwhen the sample size is small

PARAMETER ESTIMATION IN MULTIPLE LINEAR REGRESSION MODELS USING RANKED SET SAMPLING