Testing Mean with known Variance
sample size105
population variance0.2513
sample mean0.6381
null hypothesis about mean0.4667
type I error0.05
critical value (one-tailed)0.547169045809357
confidence interval (two-tailed)
(sample mean)
[ 0.542215217869598 , 0.733984782130402 ]
conclusion for one-tailed test
Reject the null hypothesis.
conclusion for two-tailed test
Reject the null hypothesis