Confidence Interval: Proportion One Sample

When entering the confidence level value, the number should be expressed in a decimal format, such as .95.

Enter a positive whole number for the sample size n.

Enter the number of successes x.

For example, if a survey of 500 people shows that 200 like apple pie, then n = 500 and x = 200.

Click on the Evaluate button to obtain the results.

Click on the Print button to print the results.

To close the window, click on the X at the top of the module window.