Contingency Table for Mild Recurrences.
| Margins | Yes Number | No Number | Total Number |
|---|---|---|---|
| Negative | 7 (4.6)* | 39 (41.4) | 46 |
| Positive | 0 (2.4) | 24 (21.6) | 24 |
| Total | 7 | 63 | 70 |
* Numbers in parentheses are calculated.
Note: The observed χ2 = 4.06. If there were an effect at the P = .05 level, then the expected χ2 = 3.84. Because the observed exceeds the expected, we conclude that the margin type affects the frequency of mild recurrence (P = .05). Reject the null hypothesis that the frequencies are the same.