| Testing Population Mean with known Variance | ||
| Population variance | 53 | |
| Sample size | 13 | |
| Sample mean | 13 | |
| Confidence interval | 0.35 | |
| Type of Interval | Left tail | Right tail |
| Two-sided confidence interval at 0.35 | 12.0837909779518 | 13.9162090220482 |
| Left one-sided confidence interval at 0.35 | 13.7780156552273 | +inf |
| Right one-sided confidence interval at 0.35 | -inf | 12.2219843447727 |
| more information about confidence interval | ||