Question: A study was conducted to see if a new therapeutic procedure is more effective than the standard treatment in improving the digital dexterity of certain handicapped persons. 19 pairs of individuals were used in the study, each pair was matched on degree of impairment, intelligence, and age. One member of each pair was randomly assigned to receive the new treatment, while the other member of the pair receive the standard therapy. At the end of the experimental period, each individual was given a digital dexterity test with scores as following:

Pair # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

New 49 56 70 83 83 68 84 63 67 79 88 48 52 73 52 73 78 64 40

Standard 54 42 63 77 83 51 82 54 62 71 82 50 41 67 57 70 80 62 46

Do these data provide sufficient evidence to indicate that the new therapeutic procedure is more effective than the standard treatment? Test at 0.01 level of significance.