\begin{tabular}{*{2}{l}}
\hline
                  & M1   \tabularnewline
                   &Estimate \tabularnewline
                 &(S.E.) \tabularnewline
 \hline
 \hline
   (Intercept)     &-1464.760*** \tabularnewline
                 &(92.051)  \tabularnewline
   x1              &26.539*** \tabularnewline
                 &( 1.388)  \tabularnewline
   x2              &27.837*** \tabularnewline
                 &( 1.339)  \tabularnewline
 \hline
 N                 &400       \tabularnewline
 RMSE             &259.449   \tabularnewline
 $R^2$             &0.697   \tabularnewline
 adj $R^2$         &0.696   \tabularnewline
 \hline
\hline
 
 \multicolumn{2}{c}{${*  p}\le 0.05$${*\!\!*  p}\le 0.01$${*\!\!*\!\!*  p}\le 0.001$}\tabularnewline
 \end{tabular}