| Testing Mean with known Variance | |
| sample size | 63 |
| population variance | 0.8 |
| sample mean | 5.35 |
| null hypothesis about mean | 5.2 |
| type I error | 0.05 |
| critical value (one-tailed) | 5.38535400549649 |
| confidence interval (two-tailed) (sample mean) | [ 5.12913707991351 , 5.57086292008649 ] |
| conclusion for one-tailed test | |
| Do not reject the null hypothesis. | |
| conclusion for two-tailed test | |
| Do not reject the null hypothesis | |