| Testing Population Mean with known Variance | ||
| Population variance | 0.012 | |
| Sample size | 27 | |
| Sample mean | 15.46 | |
| Confidence interval | 0.95 | |
| Type of Interval | Left tail | Right tail |
| Two-sided confidence interval at 0.95 | 15.4186803311797 | 15.5013196688203 |
| Left one-sided confidence interval at 0.95 | 15.4253234408083 | +inf |
| Right one-sided confidence interval at 0.95 | -inf | 15.4946765591917 |
| more information about confidence interval | ||