In the Two-Sample Test for Proportions task, you can determine whether two probabilities are the same. The data analyzed in this example are taken from a study measuring the accuracy of two computer ...

A survey of opioid treatment programs finds that the proportion offering on-site testing for human immunodeficiency virus (HIV) and sexually transmitted infections (STIs) declined substantially ...

Hypothesis Testing 2 introduced hypothesis tests for population means. In this page, hypothesis tests for population proportions (sometimes called population percentages) are introduced. Tests for a ...

The decline in testing referrals for certain diseases during the coronavirus pandemic was greatest for foodborne and waterborne infections, according to an analysis in Norway. The project compares the ...