A Study of Education Levels of 500 Voters and Their

Essay

A study of education levels of 500 voters and their political party affiliations in a particular state in Australia showed the following results. $$\begin{array} { | l | c | c | c | } \hline && { \text { Party Affliation } } \\\hline \text { Education level completed } & \text { Liberal } & \text { Other } & \text { Labour } \\\hline \text { Primary education } & 40 & 20 & 80 \\\hline \text { Secondary education } & 70 & 30 & 60 \\\hline \text { Tertiary education } & 90 & 50 & 60 \\\hline\end{array}$$ Is education level independent of political affiliation? Test at the 5% level of significance.