Location | Positive pools | Negative pools | Total |
---|
Animals | 14 | 68 | 82 |
 | 15.6 | 66.6 |  |
Wastewater Ponds | 7 | 103 | 110 |
 | 27.1 | 117.9 |  |
Fields | 69 | 211 | 280 |
 | 53.4 | 226.6 |  |
Total | 90 | 382 | 472 |
-
×
2 = 17.36, df = 2, p < 0.001
- Data from dairies S and D only. Within a location, the first row of the table shows the observed values and the second row shows the expected values