True assumed failure rate in both arms | Required total sample size | ||
---|---|---|---|
Δ = 5% Power 90% (80%) |
Δ = 7.5% Power 90% (80%) |
Δ = 10% Power 90% (80%) | |
10% | 1278 (932) | 578 (426) | 330 (244) |
15% | 1792 (1302) | 806 (588) | 458 (334) |
20% | 2232 (1624) | 1002 (730) | 570 (418) |