Testing Mean with known Variance | |
sample size | 20 |
population variance | 13 |
sample mean | 13 |
null hypothesis about mean | 0 |
type I error | 0.05 |
critical value (one-tailed) | 1.32612338987065 |
confidence interval (two-tailed) (sample mean) | [ 11.4198265179256 , 14.5801734820744 ] |
conclusion for one-tailed test | |
Reject the null hypothesis. | |
conclusion for two-tailed test | |
Reject the null hypothesis |