Pretest osttest Score Score D D2 Two-tailed 1 126 115 2 75% + . Coping Skills: Pretest, 2 133 125 Postest 3 126 96 4 115 115 Homework 9 5 108 119 Problem 1 (10 Points) 6 109 82 ED t = 7 124 93 A researcher tests 10 individuals (Participants) before and after a treatment. The results are as follows: nED-(ED) 8 98 109 Participant Pretest Posttest n-1 9 95 72 10.4 10.8 10 120 104 2 12.6 12.1 11 118 107 3 11.2 12.1 12 126 118 4 10.9 11.4 13 121 102 14 116 115 5 14.3 13.9 15 94 83 6 13.2 13.5 E 1729 1555 8 7 9.7 10.9 O Screen Shot 2022-11-04 at 10.56.45 PM~ 8 11.5 11.5 Q 9 10.8 10.4 Q Search 10 13. 12.5 The Effect Size for t for Two You want to test the hypothesis that there is an increase in score (H1: Hpretest