Procedures Applicable to Proportions

The Confidence Interval of a Proportion. The lower and upper limits of the 95% confidence interval for a proportion, calculated according to two methods. The Confidence Interval for the Difference Between Two Independent Proportions. The lower and upper limits of the 95% confidence interval for the difference between two independent proportions, calculated according to two methods. Significance of the Difference Between Two Independent Proportions. Calculates the z-ratio and associated one-