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Sample size calculation In Stata sampsi 0.1 0.01, power (0.8).
| Estimated sample size for two-sample comparison of proportions |
| Test Ho: p1 = p2, where p1 is the proportion in population 1 and p2 is the proportion in population 2 |
| Assumptions: |
| alpha = 0.0500 (two-sided) |
| power = 0.8000 |
| p1 = 0.1000 |
| p2 = 0.0100 |
| n2/n1 = 1.00 |
| Estimated required sample sizes: |
| n1 = 121 |
| n2 = 121 |
