## Confidence Interval For Mean (t)

Use this calculator to compute the confidence interval for population mean when the population standard deviation is unknown.

Confidence Interval Calculator for mean
Sample Size ($n$)
Sample Mean ($\overline{x}$)
Sample Standard Deviation ($s$)
Confidence Level ($1-\alpha$)
Results
Standard Error of Mean: ($SE$)
t-critical value: ($t_{\alpha/2,n-1}$)
Margin of Error: ($E$)
Lower Confidence Limits:
Upper Confidence Limits: