# 24: Confidence Interval Calculator for a Population Mean (With Data, Sigma Unknown)

- Page ID
- 8346

CONFIDENCE INTERVAL Calculator WITH DATA (sigma unknown)

Type in the values from the data set separated by commas, for example, 2,4,5,8,11,2. Then type in the confidence level, CL, and hit Calculate. Write the confidence level as a decimal. For example, for a 95% confidence level, enter 0.95 for CL.

**Data:**

CL: | \(\bar{x}\): | s: | Lower Bound | Upper Bound |