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Card 21 / 24:
You plan to conduct a survey on your college campus to learn about the political awareness of students. You want to estimate the true proportion of college students on your campus who voted in the 2012 presidential election with 95% confidence and a margin of error no greater than five percent. How many students must you interview?
CL = 0.95 α = 1 – 0.95 = 0.05 α 2 = 0.025 z α 2 = 1.96. Use p ′ = q ′ = 0.5.
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