(b) Two groups of university students were selected to test the effectiveness of a skills enhancement program. Group A students did not attend the program but took a skill- test that was prepared by...

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Extracted text: (b) Two groups of university students were selected to test the effectiveness of a skills enhancement program. Group A students did not attend the program but took a skill- test that was prepared by the organizer. Group B students, took the test after completing the program. The following table gives the results obtained by the students. Group A 55 Group B 78 44 85 32 72 60 66 75 54 80 73 63 88 64 61 45 57 39 82 Test at the 2.5% level of significance, based on their median scores, whether Group B students performed better than Group A students.