摘要：In this paper, we obtain several estimators of a scale parameterof Morgenstern type bivariate uniform distribution (MTBUD) based on theobservations made on the units of the ranked set sampling regarding thestudy variable Y which is correlated with the auxiliary variable X, when(X; Y ) follows a MTBUD. Eciency comparisons among these estimatorsare also made in this work. Finally, we illustrate the methods developed byusing a real data set.
关键词：Best linear unbiased estimator; concomitants of order statistics;extreme ranked set sampling; Morgenstern family; ranked set sampling; relative;eciency.
