41) From the following data test whether there is significant difference in the population proportions.
\begin{tabular}{|l|c|c|}
\hline Sample & I & II \\
\hline Sample size & \( 200 a \) & 100 \\
\hline Sample proportion & \( 0.28 \) & \( 0.34 \) \\
\hline
\end{tabular}