Back to Math Calculators
Confidence Interval Calculator
Calculate the confidence interval for a population mean given sample statistics.
95% Confidence Interval
[95.8422, 104.1578]
Lower Bound
95.8422
Upper Bound
104.1578
Margin of Error
4.1578
Sample Mean
100.0000
Sample Size
50
Std Deviation
15.0000
Interpretation
We are 95% confident that the true population mean lies between 95.8422 and 104.1578. The margin of error is 4.1578.