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Mathematics, 29.07.2020 17:01 saja19

A researcher studying public opinion of propose d Social Security changes obtains a simple random sample of 50 adult Americans and asks them whether or not they support the propose d changes. To say that the distribution of pˆ p^, the sample proportion of adults who respond yes, is approximately normal, how many more adult Americans does the researcher need to sample if (a) 10% of all adult Americans support the changes?
(b) 20% of all adult Americans support the changes?

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