Table 4 Total dust measurement at unloading (U), cleaning (C1 one machine; C2 two machines) and expedition (E) postharvest pre-processing operations.
Dust concentration | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Task | n | Sum Y2 | Average Y | Std deviation | Tabulated value | Probability | LCL | UCL | ||||||||
Soybean | Corn | Soybean | Corn | Soybean | Corn | Soybean | Corn | Soybean | Corn | Soybean | Corn | Soybean | Corn | Soybean | Corn | |
Unloading | – | 8 | – | 5.506 | – | 0.629 | – | 0.032 | – | 19.71 | – | 100 | – | 8.11 | – | 8.13 |
Cleaning | – | 7 | – | 1.856 | – | 0.511 | – | 0.492 | – | 1.04 | – | 85.08 | – | 3.26 | – | 3.29 |
Expedition | 7 | 5 | 0.755 | 8.494 | 0.252 | 1.302 | 0.169 | 0.985 | 1.49 | 1.32 | 93.19 | 90.66 | 1.99 | 20.24 | 2.02 | 20.27 |
