Dr. Moawad El Fallah Abd El Salam is currently working as Assistant Professor of Statistics at Zagazig University Egypt. He obtained his PhD in Applied Statistics from same University. His area of interest is related to Social Sciences and Applied Statistic. His area of expertise includes Regression, Methods of Estimation, Outliers, Influential Points, Robust Regression, Multicollinearity, Autocorrelation, and Hypothesis Testing. He has published 9 articles in journals contributed as author/co-author.