The Performance of Some Restricted Estimators In Restricted Linear Regression Model

In the linear regression model, restricted biased estimation as one of important  methods to addressing high variance and the  multicollinearity problems. this paper, we make simulation study some estimators. The mean square error (MME) criteria are used a comparison  among them. According observe that, performance modified unbiased  ridge estimator (RMUR) was proposed by  Bader Alheety (2020)  is better than  of these Numerical example have been considered illustrate