This web calculator conducts a z-test for the difference between two populations' proportions. The calculator includes an explanation of inputs and outputs. This web calculator conducts a z-test for ...

This web calculator allows users to specify a hypothesized population proportion, sample proportion and sample size. After finishing the steps, the calculator will show the resulting z-score and the p ...

The two-proportions test is a hypothesis test using two samples. It allows you to compare between groups to note any significant differences. It is particularly useful when comparing process ...