| Minimum Sample Size | |
| Population Size | 21 |
| Margin of Error | 0.05 |
| Confidence | 0.95 |
| Power | 0.05 |
| Population Variance | 20 |
| z(alpha/2) + z(beta) | 3.60481761149153 |
| z(alpha) + z(beta) | 3.28970725390294 |
| Minimum Sample Size (2 sided test) | 20.9959606715633 |
| Minimum Sample Size (1 sided test) | 20.9951499693302 |
| Minimum Sample Size (for Infinite Populations) | |
| Population Size | infinite |
| Margin of Error | 0.05 |
| Confidence | 0.95 |
| Power | 0.05 |
| Population Variance | 20 |
| z(alpha/2) + z(beta) | 3.60481761149153 |
| z(alpha) + z(beta) | 3.28970725390294 |
| Minimum Sample Size (2 sided test) | 103957.680096956 |
| Minimum Sample Size (1 sided test) | 86577.3905310532 |
| Minimum Sample Size (Unknown Population Variance) | |
| Population Size | 21 |
| Margin of Error | 0.05 |
| Confidence | 0.95 |
| Power | 0.05 |
| Population Variance | unknown |
| t(alpha/2) + t(beta) | 3.81072560597802 |
| t(alpha) + t(beta) | 3.44947707600009 |
| Minimum Sample Size (2 sided test) | 20.9963853255729 |
| Minimum Sample Size (1 sided test) | 20.9955887513353 |
| Minimum Sample Size (Infinite Population, Unknown Population Variance) | |
| Population Size | infinite |
| Margin of Error | 0.05 |
| Confidence | 0.95 |
| Power | 0.05 |
| Population Variance | unknown |
| t(alpha/2) + t(beta) | 3.60485508942163 |
| t(alpha) + t(beta) | 3.2897424548519 |
| Minimum Sample Size (2 sided test) | 103959.841725832 |
| Minimum Sample Size (1 sided test) | 86579.2433540398 |
