| Testing Mean with known Variance | |
| sample size | 25 |
| population variance | 0.001225 |
| sample mean | 1.49 |
| null hypothesis about mean | 1.5 |
| type I error | 0.05 |
| critical value (one-tailed) | 1.48848602461134 |
| confidence interval (two-tailed) (sample mean) | [ 1.47628025210822 , 1.50371974789178 ] |
| conclusion for one-tailed test | |
| Do not reject the null hypothesis. | |
| conclusion for two-tailed test | |
| Do not reject the null hypothesis | |