statistics 4

4 Two types of medication for rashes are being tested to determine if there is a difference in the proportions of adult patient reactions. Thirty out of a random sample of 200 adults given medication A still had rashes 30 minutes after taking the medication. Twelve out of another random sample of 200 adults given medication B still had rashes 30 minutes after taking the medication. Estimate how much more of a proportion of adults get rashes from medication A compared to medication B