3.10.A—Identify an appropriate confidence interval procedure including the parameters for the difference between two…

Identify an appropriate confidence interval procedure including the parameters for the difference between two population proportions.

• Based on the sample data, a confidence interval can be calculated to estimate the difference between two population proportions. The appropriate confidence interval procedure is a two-sample z-interval for a difference between population proportions.
• The parameters of a confidence interval for the difference between two population proportions should refer to the difference in the proportions, the response variable, and the populations in context.