| Minimum Sample Size | |
| Population Size | 20000 |
| Margin of Error | 0.2 |
| Confidence | 0.95 |
| Power | 0.5 |
| Population Variance | 0.13 |
| z(alpha/2) + z(beta) | 1.95996398454005 |
| z(alpha) + z(beta) | 1.64485362695147 |
| Minimum Sample Size (2 sided test) | 12.4775760806718 |
| Minimum Sample Size (1 sided test) | 8.78959135440793 |
| Minimum Sample Size (for Infinite Populations) | |
| Population Size | infinite |
| Margin of Error | 0.2 |
| Confidence | 0.95 |
| Power | 0.5 |
| Population Variance | 0.13 |
| z(alpha/2) + z(beta) | 1.95996398454005 |
| z(alpha) + z(beta) | 1.64485362695147 |
| Minimum Sample Size (2 sided test) | 12.4847411672559 |
| Minimum Sample Size (1 sided test) | 8.79301622581009 |
| Minimum Sample Size (Unknown Population Variance) | |
| Population Size | 20000 |
| Margin of Error | 0.2 |
| Confidence | 0.95 |
| Power | 0.5 |
| Population Variance | unknown |
| t(alpha/2) + t(beta) | 2.18986300960967 |
| t(alpha) + t(beta) | 1.86608066964832 |
| Minimum Sample Size (2 sided test) | 15.5740173586105 |
| Minimum Sample Size (1 sided test) | 11.3115002361877 |
| Minimum Sample Size (Infinite Population, Unknown Population Variance) | |
| Population Size | infinite |
| Margin of Error | 0.2 |
| Confidence | 0.95 |
| Power | 0.5 |
| Population Variance | unknown |
| t(alpha/2) + t(beta) | 2.18970393337946 |
| t(alpha) + t(beta) | 1.86597116712752 |
| Minimum Sample Size (2 sided test) | 15.5831107765369 |
| Minimum Sample Size (1 sided test) | 11.3160072887915 |
