10. The data on the number of minutes that patients had to wait for their appointment with 5 doctors. Doctor A B C D E 21 9 18 9 29 20 11 17 11 30 21 15 16 28 24 30 12 15 30 26 28 18 20 15 25 Test if there is significant difference among the waiting times Assume Normal distribution .The data below represent the number of hours of pain relief provided by two brands of headache tablets administered to 24 subjects. These subjects were randomly divided into two groups and each group was treated with a different brand. Brand X, Brand X Test if there is significant difference in hours of pain relief between the brands Assume Normal distribution WNAUWJAVA-NW