Can i please get this in 15min?

2. (65 pts.) A consumer research group wanted to compare the failure rates on emission tests at stations A and B. At station A, 53 out of 400 randomly sampled cars failed the test. At station B, 91 out of 471 randomly sampled cars failed the test. a. Should the research group conclude that that there was a difference in the failure rates at the 5% significance level? b. Construct a 90% confidence interval for the difference in the proportions of cars that failed the emission test. c. Find the point estimate. d. Find the margin of error. e. Interpret the confidence interval in terms of this