Testing Mean with known Variance | |
sample size | 27 |
population variance | 0.012 |
sample mean | 15.46 |
null hypothesis about mean | 0.15 |
type I error | 0.05 |
critical value (one-tailed) | 0.184676559191704 |
confidence interval (two-tailed) (sample mean) | [ 15.4186803311797 , 15.5013196688203 ] |
conclusion for one-tailed test | |
Reject the null hypothesis. | |
conclusion for two-tailed test | |
Reject the null hypothesis |