You are conducting a study to determine if there is a significant difference between average adult weight of males and females (in pounds). Calculate the test-statistic, $t$ with the following sample data. $$ \begin{array}{1) n_{1}=40, \bar{x}_{1}=205, S_{1}=3 n_{2}=45, \bar{x}_{2}=205, s_{2}=9 \end{array) $$ Rounded to 2 decimal places. SP.DL.225