Tests about a population proportion

These significance tests tell us if a sample offers convincing evidence that a population proportion is different from some hypothesized value.

Constructing hypotheses for a significance test about a proportion

Writing hypotheses for a test about a proportion

Conditions for a z test about a proportion

Conditions for a z test about a proportion

Calculating a z statistic in a test about a proportion

Calculating the test statistic in a z test for a proportion

Calculating a P-value given a z statistic

Calculating the P-value in a z test for a proportion

Making conclusions in a test about a proportion

Making conclusions in a z test for a proportion