Table 1 Statistical power for different comparisons between subgroups
Comparator Rate (n = 1000) | 80% power (1-β) (n = 1000) to find the following difference significant at α = .05 | 90% power (1-β) (n = 1000) to find the following difference significant at α = .05 |
|---|---|---|
3% | 2.5% | 3.0% |
4% | 2.8% | 3.4% |
5% | 3.0% | 3.6% |
6% | 3.3% | 3.9% |
7% | 3.5% | 4.1% |
8% | 3.7% | 4.4% |
9% | 3.9% | 4.6% |
10% | 4.1% | 4.8% |