3 A sample survey, conducted to determine the attitudes of residents to a proposed reorganisation of local schools, gave the following results.
| Against reorganisation | Not against reorganisation |
| \multirow{5}{*}{Age of resident} | 16-17 | 9 | 2 |
| 18-21 | 17 | 10 |
| 22-49 | 115 | 90 |
| 50-65 | 41 | 34 |
| Over 65 | 3 | 4 |
Use a \(\chi ^ { 2 }\) test, at the \(5 \%\) level of significance, to determine whether there is an association between the ages of residents and their attitudes to the proposed reorganisation of local schools.