| Minimum Sample Size | |
| Population Size | 20000 |
| Margin of Error | 0.15 |
| Confidence | 0.85 |
| Power | 0.85 |
| Population Variance | 0.13 |
| z(alpha/2) + z(beta) | 2.47596486043225 |
| z(alpha) + z(beta) | 2.07286677898758 |
| Minimum Sample Size (2 sided test) | 35.3592469457427 |
| Minimum Sample Size (1 sided test) | 24.7962812498726 |
| Minimum Sample Size (for Infinite Populations) | |
| Population Size | infinite |
| Margin of Error | 0.15 |
| Confidence | 0.85 |
| Power | 0.85 |
| Population Variance | 0.13 |
| z(alpha/2) + z(beta) | 2.47596486043225 |
| z(alpha) + z(beta) | 2.07286677898758 |
| Minimum Sample Size (2 sided test) | 35.4201003872171 |
| Minimum Sample Size (1 sided test) | 24.8258208375975 |
| Minimum Sample Size (Unknown Population Variance) | |
| Population Size | 20000 |
| Margin of Error | 0.15 |
| Confidence | 0.85 |
| Power | 0.85 |
| Population Variance | unknown |
| t(alpha/2) + t(beta) | 2.52476904777288 |
| t(alpha) + t(beta) | 2.11903828235644 |
| Minimum Sample Size (2 sided test) | 36.7643423816685 |
| Minimum Sample Size (1 sided test) | 25.9117725640572 |
| Minimum Sample Size (Infinite Population, Unknown Population Variance) | |
| Population Size | infinite |
| Margin of Error | 0.15 |
| Confidence | 0.85 |
| Power | 0.85 |
| Population Variance | unknown |
| t(alpha/2) + t(beta) | 2.52468100382657 |
| t(alpha) + t(beta) | 2.11897978401967 |
| Minimum Sample Size (2 sided test) | 36.8276374329225 |
| Minimum Sample Size (1 sided test) | 25.942657433819 |
