A researcher wants to determine if soundproofing a classroom leads to better behavior among the students. In the standard classrooms, there were 30 behavioral problems from a total of 250 children. In the soundproofed classrooms, there were 20 behavioral problems from a total of 300 children. Test if room noise results in an increased number of behavioral problems by computing the relative risk (of noisy classrooms) for producing behavioral problems. Have SAS produce a 95% CI for the relative risk as well.