Macmillan Learning Music that matches a sports activity's requirements has been shown to enhance sports performance. Very little, however, is known about the effects of music on imagery in the context of sports performance. In one study, 63 novice dart throwers were randomly assigned equally to three groups. During each of 12 dart-throwing imagery sessions, one group listened to unfamiliar relaxing music (URM); another listened to unfamiliar arousing music (UAM); and the other listened to no music (NM). Dart-throwing performance was assessed before and after the imagery sessions using a 40-dart distance score (darts closer to the center of the board were given a higher score). The following table contains the results for the gain in score (after - before). Group x S URM 37.24 5.66 UAM 17.57 5.30 NM 13.19 6.14 Using Table E or software, what is the P-value for this study? P-value=