Feder and Dugan (2002) reported a study in which 404 domestic violence defendants were randomly assigned to counseling and probation (the experimental group) or just probation (the control group). Out of 230 people in the counseling group, 55 were arrested within 12 months. Out of 174 people assigned to probation, 42 were arrested within 12 months. Determine whether counseling lowered the arrest rate; use a 0.05 significance level. Start by comparing the percentages.

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