Discussion of the master’s thesis in the College of Computer Science and Mathematics -Department of Statistics and Informatics Department entitled:" The robust estimation of finite population mean for modified regression line by stratified ranked set sampling " Master’s thesis by  Ayman Mahmoud Khalaf supervised by  Dr. Rikan Abdulazeez Ahmed This thesis includes the presents and studies proposed estimators based on regression (separate and joint) to estimate the mean of a finite population within the framework of the stratified random sampling (S_t MRSS). These estimators are compared with regression estimators (separate and joint) for estimating the mean of the population in the [Read More]