3.1.13 Assigned Media College students and surfers Rex Robinson and Sandy Hudson collected data on the self-re Longboard:4, 17, 22, 5, 5, 17, 19, 12, 13, 9, 10, 8, 14, 16, 7, 15, Full data set 22, 11, 16, 4, 18, 17, 13, 15, 17, 9, 18, 20, 12, 14 Shortboard: 6, 13, 5, 8, 11, 4, 10, 11, 9, 6, 12, 12, 5, 17, 12, 8, 5, 18, 20, 17, 5, 14 4, 11, 9, 9, 7, 10, 10, 17 a. Compute the means for both longboards and shortboards. The mean for longboards is days. (Round to one decimal places as needed.)