| Minimum Sample Size | |
| Population Size | 20000 |
| Margin of Error | 0.05 |
| Confidence | 0.8 |
| Power | 0.15 |
| Population Variance | 0.13 |
| z(alpha/2) + z(beta) | 2.31798495503839 |
| z(alpha) + z(beta) | 1.8780546230667 |
| Minimum Sample Size (2 sided test) | 275.563000370784 |
| Minimum Sample Size (1 sided test) | 181.750989187765 |
| Minimum Sample Size (for Infinite Populations) | |
| Population Size | infinite |
| Margin of Error | 0.05 |
| Confidence | 0.8 |
| Power | 0.15 |
| Population Variance | 0.13 |
| z(alpha/2) + z(beta) | 2.31798495503839 |
| z(alpha) + z(beta) | 1.8780546230667 |
| Minimum Sample Size (2 sided test) | 279.398821092785 |
| Minimum Sample Size (1 sided test) | 183.408636695555 |
| Minimum Sample Size (Unknown Population Variance) | |
| Population Size | 20000 |
| Margin of Error | 0.05 |
| Confidence | 0.8 |
| Power | 0.15 |
| Population Variance | unknown |
| t(alpha/2) + t(beta) | 2.32303709306346 |
| t(alpha) + t(beta) | 1.88302971114983 |
| Minimum Sample Size (2 sided test) | 276.748870218166 |
| Minimum Sample Size (1 sided test) | 182.706396449993 |
| Minimum Sample Size (Infinite Population, Unknown Population Variance) | |
| Population Size | infinite |
| Margin of Error | 0.05 |
| Confidence | 0.8 |
| Power | 0.15 |
| Population Variance | unknown |
| t(alpha/2) + t(beta) | 2.32296733009161 |
| t(alpha) + t(beta) | 1.88298438156779 |
| Minimum Sample Size (2 sided test) | 280.601215266993 |
| Minimum Sample Size (1 sided test) | 184.372769423869 |
