| Testing Sample Mean with known Variance | ||
| Population variance | 0.13 | |
| Sample size | 98 | |
| Null hypothesis (H0) | 20 | |
| Confidence interval | 0.65 | |
| Type of Interval | Left tail | Right tail |
| Two-sided confidence interval at 0.65 | 19.9659607926259 | 20.0340392073741 |
| Left one-sided confidence interval at 0.65 | 19.9859660244486 | +inf |
| Right one-sided confidence interval at 0.65 | -inf | 20.0140339755514 |
| more information about confidence interval | ||