Table 2.
Paired t-test and accuracy analysis of carbon oxide and methane for comparison of the GF emissions rates versus the MFC and respiration chamber emission rates (n = 10/treatment)
| Carbon dioxide | Methane | |||
|---|---|---|---|---|
| Item | Outside chamber | Inside chamber | Outside chamber | Inside chamber |
| Emission, g/d | ||||
| GF | 8,223 | 8,035 | 309 | 328 |
| MFC | 7,946 | — | 305 | — |
| Respiration chamber | — | 7,850 | — | 323 |
| Difference, % | 3 | 2 | 1 | 1 |
| P-value | 0.013 | 0.007 | 0.726 | 0.019 |
| Accuracy analysis | ||||
| Offset error, % | 81 | 13 | 3 | 13 |
| Regression error, % | 18 | 13 | 80 | 13 |
| Random error, % | 1 | 74 | 17 | 76 |