Confidence Interval Calculator

Sample Mean:

Standard Deviation:

Sample Size:

Confidence Level (e.g., 95 for 95%):

Results

This tool helps you calculate the confidence interval for a sample mean based on the input parameters.

Input Parameters: Enter your sample mean, standard deviation, sample size, and desired confidence level.
Calculate: Click the 'Calculate Confidence Interval' button to compute the confidence interval.
View Results: The result will display the confidence interval range.

Input Format: Ensure all inputs are filled out correctly for accurate results.
Confidence Levels: Common values are 90%, 95%, and 99%. Default is 95%.
Note: All calculations are done on the client side; no data is stored.