Testing Mean with known Variance
sample size35
population variance3.196639
sample mean1457143
null hypothesis about mean0
type I error0.05
critical value (one-tailed)0.497095728681138
confidence interval (two-tailed)
(sample mean)
[ 1457142.40767391 , 1457143.59232609 ]
conclusion for one-tailed test
Reject the null hypothesis.
conclusion for two-tailed test
Reject the null hypothesis