QUESTION

# Can someone please help me out with this assignment, 2 questions. 1. To locate treatment programs for heroin addicts, the mayor wants to conduct a

1. To locate treatment programs for heroin addicts, the mayor wants to conduct a study of persons arrested for possession in your city.

He suggests looking at data on location of arrest and residence of arrestees for the past month (March 20 to April 20). This will yield a sample of at least eighty cases. From his statistics course, he says that with a sample size greater than 50, the central limit theorem will apply and you can to make a reasonable estimate of the numbers of people needing treatment with a level of confidence of 95%.

Is the mayor correct that this sample, would give him the information he needs to adequately plan for services? From your knowledge of criminal justice and statistical analysis would you suggest a different sampling plan? If yes, what would you suggest? No calculations are necessary, but consider this question in light of what you know about sampling and inference.

2, A researcher conducts a study of white and black attitudes toward the police in her community.

The percentage of a random sample of white respondents (N = 250) who say they have a favorable attitude toward the police is 55%. The percentage of a random sample of black respondents (N = 300) who say they have a favorable attitude toward the police is 41%.

You are asked if there is a real difference between the percentage of whites and blacks who have a positive attitude toward the police in the larger population, or is this sample difference likely to have occurred by random chance or sampling error.