The Chief Psychologist at a State Prison Has Developed a Rehabilitation

The chief psychologist at a state prison has developed a rehabilitation program for inmates convicted of violent crimes against females.All of the prisoners have been rated on the frequency of their attendance at sessions (the program is voluntary)and have completed a battery of tests which measures their level of hostile and aggressive feelings towards females.Are less hostile attitudes associated with frequent attendance at sessions? Does the program work?
$\begin{array}{|l|l|l|l|}\hline \text {Hostility Towards Women by }\\ \text {Frequency of Attendance}\\\hline &\text {FREQUENCY OF}\\&\text {ATTENDANCE}\\\hline \text { HOSTILITY } & \text { Low } & \text { High } & \text { Totals } \\\hline \text { Low } & 60 & 144 & 204 \\\hline \text { High } & 80 & 31 & 111 \\\hline \text { Totals } & 140 & 175 & 315\\\hline \\\end{array}$