B Client Before After Change (+/-) 1 30 29 2 34 32 3 29 27 4 38 36 5 28 25 6 29 28 7 36 34 8 34 35 9 38 35 10 40 35 11 42 37 12 30 32 Twelve randomly selected individuals with anxiety participated in a research project designed to determine whether a short training program combining several well-supported techniques was effective in reducing anxiety. The anxiety scores of the individuals before and after the program was completed are listed below. Use a sign test with an alpha of .05one-tailed to test the hypothesis that the combination of techniques is effective in reducing anxiety. Number of clients in which anxiety decreased: _______ One-tailed probability obtained (calculated): _______________________