Testing Mean with known Variance | |
sample size | 98 |
population variance | 0.87 |
sample mean | 20.29 |
null hypothesis about mean | 0 |
type I error | 0.65 |
critical value (one-tailed) | 0.0363051859727149 |
confidence interval (two-tailed) (sample mean) | [ 20.2472461830146 , 20.3327538169854 ] |
conclusion for one-tailed test | |
Reject the null hypothesis. | |
conclusion for two-tailed test | |
Reject the null hypothesis |