Can someone please help me? I don't understand how to do it.
2-(15 points) Compute a 95% Confidence Interval for the Difference in Population Proportions based on the following data summary. Then test Ho: p1 - p2 = 0 vs HA: p1 - p2 ≠0 at α = 0.05.
Population 1: p1 = 0.78, n1 = 200
Population 2: p2 = 0.85, n2 = 250
Sample Proportion: P
Sample Size: n