Please help me understand and solve this problem. How do get the difference between these two populations?

Score: 0 of 3 pts 2 of 9 (6 complete) HW Score: 17.38%, 7.13 of 41 pts 11.1.13 Question Help Construct a confidence interval for p, - p2 at the given level of confidence. X1 = 355, ny = 537, x2 = 422, n2 = 565, 95% confidence The researchers are | % confident the difference between the two population proportions, P, - P2, is between |and (Use ascending order. Type an integer or decimal rounded to three decimal places as needed.)