Student 3 4 7 8. 9. 10 11 12 Pre test 73 76 45 77 65 44 51 53 78 70 46 79 Post Test 83 89 57 79 75 39 62 62 76 79 39 94 Can you conclude that the median scores differ between the pretest and the posttest? Use the a = 0.05 level of significance.

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Q: mean median and mode.

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