1. A Gallup poll conducted Feb 17-28, 2020 asked 900 American adults if they approve of...

1. A Gallup poll conducted Feb 17-28, 2020 asked 900 American adults if they approve of the Affordable Care Act (aka Obamacare). This poll found 52% approved of the ACA. Find and interpret (in a complete sentence) the 90% confidence interval of the proportion of all American adults who approve of the ACA.

2. An Emerson poll conducted April 26-28, 2020 asked 1200 registered voters if they approve of President Trumps job performance. This poll found 41% approved of his job performance. Find and interpret (in a complete sentence) the 95% confidence interval of the proportion of all registered voters who approve of the president's job performance.

3. A study of 100 orange tabby cats from shelters across California found that 90 of them are male. Find and interpret (in a complete sentence) the 99% confidence interval of the proportion of all orange tabby cats in California that are male.

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orchestra answered 1 year ago

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