As an alternative method of evaluating a group home, suppose we take 12 adolescents who have been declared delinquent. We take the number of days truant during each of three time periods: (1) the month before they are placed in the home, (2) the month they live in the home, and (3) the month after they leave the home. The data are as follows:

Adolescent Before During After 1 10 5 8 2 12 8 7 3 12 13 10 4 19 10 12 5 5 10 8 6 13 8 7 7 20 16 12 8 8 4 5 9 12 14 9 10 10 3 5 11 8 3 3 12 18 16 2 Apply Friedman’s test. What do you conclude?