\begin{table}%t6
\caption{Parameters from the second Monte Carlo simulation for~M~33.\label{tab6}}
\par
%\centerline
{\begin{tabular} {lll} \hline \hline \noalign{\smallskip}
For a scatter of 1&&\\
\hline
 Slope&         Mean&      Standard\\
  before&        slope&      deviation\\
 selection&     after &       of slope\\
 &        selection&  after selection\\
 \hline
   5.0000 &   4.2440&    0.6589\\
   4.5000 &   3.8234 &   0.4301\\
   4.0000 &   3.4694 &   0.4543\\
   3.5000 &   3.0667 &   0.3484\\
   3.0000 &   2.6211 &   0.2723\\
   2.5000 &   2.1759 &   0.1887\\
   2.0000 &   1.7322 &   0.1404\\
   1.5000 &   1.3125 &   0.1033\\
   1.0000 &   0.8649 &   0.0437\\
\hline
For a scatter of 2&&\\
\hline
   5.0000 &  3.4422&    0.9152\\
   4.5000 &  3.1051&    0.7685\\
   4.0000 &  2.8787&    0.6503\\
   3.5000 &  2.3977&    0.4810\\
   3.0000 &  2.0118&    0.3661\\
   2.5000 &  1.6886&    0.2916\\
   2.0000 &  1.3388&    0.2287\\
   1.5000 &  0.9781&    0.1431\\
   1.0000 &  0.6772&    0.0770\\
 \hline
\end{tabular}}
\par
%\begin{list}{}{}
\par
%\item[$^{\mathrm{a}}$] This is footnote a
\par
%\end{list}
\end{table}