Estimation of the regression model using the lower squares method Balanced balance in the case of a problem of heterogeneity Contrast and abnormal values together with practical application

Abstract

The non-Contrasted Homogeneity in an inclination model is considered as one of the supreme problems that one may confront while building such model, especially in economic phenomenon. Thus a method called (WLS)(Weighted Least Squares) which considered as a especial case from (GLS)(General Least Squares), one of the important Alternative means for (OLS) , in case there is a problem. But the method (WLS) requires weight estimate also requires knowing the natural structure of non –Contrasted Homogeneity, which at most is un known. In (2001) a method made by a number of researchers, known as (MPV) This method can use weight estimate in a way made the (WLS) carry new good characteristics such as ; non-alignment and efficiency. Except that the (MPV) method and other Alternative methods for (OLS) failed enormously,