| Testing Sample Mean with known Variance | ||
| Population variance | 13.78084997 | |
| Sample size | 63 | |
| Null hypothesis (H0) | 20 | |
| Confidence interval | 0.95 | |
| Type of Interval | Left tail | Right tail |
| Two-sided confidence interval at 0.95 | 19.0833240894499 | 20.9166759105501 |
| Left one-sided confidence interval at 0.95 | 19.230701325075 | +inf |
| Right one-sided confidence interval at 0.95 | -inf | 20.769298674925 |
| more information about confidence interval | ||