# 9: Confidence Interval for a Population Mean Given Statistics

- Page ID
- 19740

Confidence Interval for a Population Mean Given Statistics

This calculator creates a confidence interval for a population mean given statistics. Please report the error to Dr. Jessica Kuang at jkuangATvcccd.edu.

To learn how to use this calculator, please watch a short video here.

**Input**

Fill in the sample size (\(n\)), the sample mean (\(\bar{x}\)), the sample standard deviation (\(s\)), and the confidence level (CL), then click Calculate. Write the confidence level as a decimal. For example, for a 95% confidence level, enter 0.95.

Sample Size (\(n\)): | Sample Mean (\(\bar{x}\)): | Standard Deviation (\(s\)): | Confidence Level (enter a decimal): |

**Output**

Lower Bound: | Upper Bound: |

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