| Minimum Sample Size | |
| Population Size | 120 |
| Margin of Error | 1 |
| Confidence | 0.9 |
| Power | 0.9 |
| Population Variance | 9 |
| z(alpha/2) + z(beta) | 2.92640519249607 |
| z(alpha) + z(beta) | 2.5631031310892 |
| Minimum Sample Size (2 sided test) | 47.1705866283904 |
| Minimum Sample Size (1 sided test) | 39.8317945049416 |
| Minimum Sample Size (for Infinite Populations) | |
| Population Size | infinite |
| Margin of Error | 1 |
| Confidence | 0.9 |
| Power | 0.9 |
| Population Variance | 9 |
| z(alpha/2) + z(beta) | 2.92640519249607 |
| z(alpha) + z(beta) | 2.5631031310892 |
| Minimum Sample Size (2 sided test) | 77.0746261560118 |
| Minimum Sample Size (1 sided test) | 59.1254789453934 |
| Minimum Sample Size (Unknown Population Variance) | |
| Population Size | 120 |
| Margin of Error | 1 |
| Confidence | 0.9 |
| Power | 0.9 |
| Population Variance | unknown |
| t(alpha/2) + t(beta) | 2.97869099243562 |
| t(alpha) + t(beta) | 2.6074718658676 |
| Minimum Sample Size (2 sided test) | 48.1883036365791 |
| Minimum Sample Size (1 sided test) | 40.7504008164653 |
| Minimum Sample Size (Infinite Population, Unknown Population Variance) | |
| Population Size | infinite |
| Margin of Error | 1 |
| Confidence | 0.9 |
| Power | 0.9 |
| Population Variance | unknown |
| t(alpha/2) + t(beta) | 2.95791034179414 |
| t(alpha) + t(beta) | 2.59257328000063 |
| Minimum Sample Size (2 sided test) | 78.7431023108343 |
| Minimum Sample Size (1 sided test) | 60.492925909559 |
