Four methods of teaching statistics A B C D are to be compar

Four methods of teaching statistics (A, B, C, D) are to be compared. Four students from each of the four classes (freshman, sophomore, junior, senior) will each taught by a different teacher (Teachers 1, 2, 3. 4). All of the students in the experiment are given an exam (with the score denoted X) to determine their initial knowledge of the subject. After the course, each student is again tested (with score denoted Y) to determine method given in the subject. You may assume Y is linearly related to X. The following were observed with the method given in parenthesis. Analyze this data. Using a .05 level of significance, test for differences between the methods, the classes, and the teachers. Whether or not you conclude a difference between methods in part (a), perform multiple multiple comparisons to determine which methods differ at a .10 level of significance.

Solution

there is no difference in the 2 methods