Based on the following research questions, indicate whether you should conduct a z test, a single sample t test, an independent samples t test, or a related samples t test? A researcher randomly sampled male and female youth to participate in a delinquency prevention program. She measured the youth’s attitudes about antisocial behavior before and after participating in the program. A researcher was interesting is studying differences in policing in poor and wealthy communities. The researcher gathered information on a sample of poor and wealthy communities and measured the number of disorderly conduct arrests in each community.

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