A training manager wanted to investigate the effect of a specific training program on a group of participants. Before giving the training, he selected a random sample of 10 participants and administered a test. After the training program he administered the same type of test on the same participants. The test scores obtained before and after the training are given below: Before training: 69 67' 55 43 7? 46 3'5 52 43 65 After training: 56 1'0 62 T2 71 50 68 7'2 68 '53 Test whether the training program has any effect on the participants. Use alpha = 0.05