# 15: Two Independent Proportions Comparison

Two Independent Proportions Comparison

This calculator performs the hypothesis test and also constructs a confidence interval for $$p_1$$−$$p_2$$ 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

Enter the sample size and the number of successes for each sample, choose the test, and enter the confidence level then hit Calculate. The test statistic, p-value, and the boundaries of the confidence interval will be shown.  Be sure to enter the confidence level as a decimal, e.g., enter 95% as 0.95.

 Sample Size (N) Number of Successes (X) First Sample choose a test     $$\lt$$     $$\gt$$     $$\neq$$ Second Sample
 Confidence Level (enter a decimal):

Output

 Test Statistics (z): p-value: Lower Bound: Upper Bound: