Nine students have been chosen to take part in a study. Each student will be taught statistics by two completely different methods and then tested on their knowledge in each class. The results of the first technique are labeled as Group 1 and the results of the second technique are labeled Group 2 as follows:
Group 1 Group 2
76 83
92 91
83 72
84 93
65 75
71 87
60 75
81 79
72 74
You can assume that the average difference between these two groups is -5.00. Further, you can assume that the sample variance of the differences is 77.0.
A) Use the appropriate procedure to test the claim that scores in these two groups are the same, using α =.10.