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5. You want to find what proportion of churchgoers believe that evolution should be taught in public schools, so you take a systematic survey at a local mall. You collect 487 survey forms. Of those, 321 identify as churchgoers, and 227 of those 321 say that evolution should be taught in public schools. Note- an answer may not be numeric. (a) What is the population? (b) What is the population size? (c) What is the sample size? (d) Is limiting the sample to churchgoers a bias source?

Explanation / Answer

a)

population refers to the total set of observations that can be made

All the churchgoerrs in the world.

b)

Cant find /not given

c)

sample is the the 321 chorchgoers who have come to the mall

d)no! that is what we intend to study

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