From: Investigating probabilistic sampling approaches for large-scale surveys in software engineering
Stratum | Correlation | 95 % (inferior) | 95 % (superior) |
---|---|---|---|
E1 | 0.8022 | 0.3487 | 0.9513 |
E2 | 0.9957 | 0.9814 | 0.999 |
E3 | 0.7857 | 0.309 | 0.9469 |
E4 | 0.9595 | 0.8333 | 0.9906 |
E5 | 0.7611 | 0.2524 | 0.9402 |
E6 | 0.9786 | 0.9092 | 0.9951 |
E7 | 0.943 | 0.7714 | 0.9868 |
E8 | 0.9843 | 0.9329 | 0.9964 |