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Health care Organizations like Gallup often track public opinion on many issues by asking the same ...

Health care Organizations like Gallup often track public opinion on many issues by asking the same question at different times. In October of 2013, Gallup reported that 52% of U.S. adults disapprove of the Affordable Care Act (known as Obamacare), which is up from 45% a year earlier. Assume these were both based on random samples of 450 people. Use a significance test to determine if this is evidence of a real change in public opinion.

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Stats: Modeling the World

Edition: 4^th

Authors: Bock, Velleman, De Veaux

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Thank you, thank you, thank you!

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