Calculate the test statistic, x^(2), for a chi-squared test forassociation using the following table.
The following data represents the observed values and expectedvalues of the eating habits of runners and swimmers for a randomsample of adult athletes.
| Prefer to eat before workout. | Prefer to eat after workout. | Total |
Runner | 68 | 121 | 189 |
Swimmer | 73 | 128 | 201 |
Total | 141 | 249 | 390 |
