Confidence Interval: A confidence interval provides a range of values within which the true population parameter (e.g., proportion difference) is likely to fall.
Hypothesis Testing: Hypothesis testing involves making an educated guess or claim about a population parameter and using sample data to determine whether the claim appears reasonable or not.
Chi-Square Test: The chi-square test is used to determine if there is a significant association between two categorical variables. It can be applied when comparing proportions in different groups.