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3. Research tracked the impact of three different types of teaching methods (In-person; Online; Mixed) on the writing performance of students in two different schools (A and B). For each teaching method in each school, 6 students are randomly selected. # Method School Writing Score # Method School Writing Score 1 In-person A 37 19 In-person B 22 2 In-person A 62 20 In-person B 44 3 In-person A 44 21 In-person B 43 4 In-person A 55 22 In-person B 50 5 In-person A 65 23 In-person B 24 6 In-person A 49 24 In-person B 31 7 Online A 48 25 Online B 71 8 Online A 47 26 Online B 66 9 Online A 44 27 Online B 62 10 Online A 55 28 Online B 47 11 Online A 69 29 Online B 70 12 |Online A 47 30 Online B 51 13 Mixed A 61 31 Mixed B 90 14 Mixed A 55 32 Mixed B 53 15 | Mixed A 49 33 Mixed B 86 16 Mixed A 51 34 Mixed B 63 17 Mixed A 69 35 Mixed B 63 18 Mixed A 40 36 Mixed B 76 [For R. you may use a data frame. You may first create 3 variables for method, school, and writing score . method