Forging th Question 8 3 pts In a study comparing the difference of two population proportions, with the same notation from class: A random sample from Population 1 had sample size 1 = 40 and X1 = 30 "successes". A random sample from population 2 had sample size /2 = 40 and Xz = 20 "Successes" Find the margin of error for a 90% confidence interval for the difference in the population proportions P1 - P2. Reminder: As always, "success" just means the presence of whatever characteristic we are comparing in the populations. Hint: for this problem, don't forget to put your hat(s) on. O 0.172 O 0.205 O 0.332