Question: Exercise 8.19 discussed a research poll conducted for ABC News and the Washington Post that included questions about illegal immigration into the United States, and

Exercise 8.19 discussed a research poll conducted for ABC News and the Washington Post that included questions about illegal immigration into the United States, and the federal and state responses to the problem. Suppose that you were designing a poll of this type.
a. Explain how you would select your sample. What problems might you encounter in this process?
b. If you wanted to estimate the percentage of the population who agree with a particular statement in your survey questionnaire correct to within 1% with probability .95, approximately how many people would have to be polled?

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