looking for help since checking my answers twice, I've ended up with multiple solutions and want to check if I correctly did my intervals right

4. Academy Sports & Outdoors is interested in the difference in the proportions of returned purchases at 2 different locations, retail stores in Dallas and Houston. They have collected the following data. Refer to the Dallas store as Population 1 and the Houston store as Population 2, and answer the following questions leading up to the hypothesis test. Dallas store (population 1) Houston store (population 2) Goods purchased last month = 2, 144 Goods purchased last month = 3, 509 Number of these that were returned = 150 Number of these that were returned = 140 Ho : P1 - P2 = 0 Ha : p1 - p2 # 0 (a) What is the estimate of the proportion in population 1? (b) What is the estimate of the proportion in population 2? (c) What is the estimate of the difference between the two population proportions? (d) What is the standard error of the difference between the two population proportions? Round to 4 decimal places. (e) Develop a 90% confidence interval for the difference between the two population proportions. Report as a number + another number. (f) Develop a 95% confidence interval for the difference between the two population proportions. Report as a number + another number. (g) Develop a 99% confidence interval for the difference between the two population proportions. Report as a number + another number. (h) What is the pooled estimate of p? (i) What is the test statistic (=-value)? Round to 2 decimal places. (j) What is the p-value? Round to 4 decimal places. (k) With a 90% confidence level (a = 0.10), what is your conclusion? (1) With a 95% confidence level (or = 0.05), what is your conclusion? (m) With a 99% confidence level (a = 0.01), what is your conclusion