Two groups of students, one Engineering and the other Psychology, are comparing their abilities in a puzzle-solving task. The following represents the time (in seconds) it took for each participant (13 in total) to solve the task. Conduct a Mann-Whitney test to determine if there is a difference between the two groups of students in the time it took to solve the task. Assume a two-tailed hypothesis witha = .05.

Engineering:44 105 63 191 56 117 79

Psychology: 54 88 67 48 71 63