| Cases | ||||||
|---|---|---|---|---|---|---|
| Included | Excluded | Total | ||||
| N | Percent | N | Percent | N | Percent | |
| mtbf * factory * environment | 30 | 100.0% | 0 | .0% | 30 | 100.0% |
| Manufacturing facility | Operating Environment | Mean | N | Std. Deviation |
|---|---|---|---|---|
| 0 | Temperate | 7.26 | 9 | 2.57 |
| Tropical | 7.47 | 7 | 2.68 | |
| Total | 7.35 | 16 | 2.53 | |
| 1 | Temperate | 13.38 | 6 | 7.77 |
| Tropical | 8.20 | 8 | 8.39 | |
| Total | 10.42 | 14 | 8.26 | |
| Total | Temperate | 9.71 | 15 | 5.91 |
| Tropical | 7.86 | 15 | 6.20 | |
| Total | 8.78 | 30 | 6.03 |