B C D Tokyo Disneyland to study shorter wait times for passengers getting on and off rides (unit: minutes) method. Two methods have been proposed for research, please discuss them according to the following information. The main effect of method, play facility on waiting time, and the effect of their interaction ( a = 0.05). Giant Thunder Mountain splash mountain space mountain Method 1 43,41 44,52 46.50 Method 2 51,49 46,50 44,48 8 (a) Create an ANOV A table and test at a 5% significance level whether there is a difference in math achievement among the three classes. 9 (b) Use the LSD method to compare the average grades of classes B and C. 10 11 12 + 13 14 15 16 17 18 19 20 21 22