| Testing Variance - Confidence Intervals for Population Variance | ||
| Sample size | 63 | |
| Sample variance | 13 | |
| Confidence interval | 0.8 | |
| Type of Interval | Left tail | Right tail |
| Two-sided confidence interval at 0.8 | 10.5180453112276 | 16.713078290489 |
| Left one-sided confidence interval at 0.8 | 11.3321110073203 | +inf |
| Right one-sided confidence interval at 0.8 | 0 | 15.356090695206 |
| more information about confidence interval | ||