Question: Find for ? CI alpha alpha/2 1-alpha/2 z, critical value 90% 0.1 0.05 0.95 ? 95% 0.05 0.025 0.975 ? 99% 0.01 0.005 0.995 ?
Find for ?
| CI | alpha | alpha/2 | 1-alpha/2 | z, critical value | |
| 90% | 0.1 | 0.05 | 0.95 | ? | |
| 95% | 0.05 | 0.025 | 0.975 | ? | |
| 99% | 0.01 | 0.005 | 0.995 | ? | |
| Standard normal distribution:- | NORM.INV((1-alpha/2),0,1) | ||||
| Std. Error:- | 95% CI | ? | UB | ||
| ? | LB | ||||
| 90%CI | ? | UB | |||
| ? | LB | ||||
| 99%CI | ? | UB | |||
| ? | LB | ||||
| NORM.INV((1-alpha/2),sample mean,std error) | UB | ||||
| NORM.INV((alpha/2),sample mean,std error) | LB |
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