MATLAB: An Introduction with Applications
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ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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he North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement signed by the United States, Canada and Mexico. This trade agreement has been controversial since its inception and Americans remain split on the issue. In a Gallup Poll conducted February 1-5, 2017, 420 out of 912 randomly selected Americans aged 18 or older stated that they believed that NAFTA was bad for the United States.
- Find the point estimate for the proportion of Americans who believe that NAFTA was bad for the United States. Round your answer to 4 decimal places.
- Find the margin of error for a 95% confidence interval. Round your answer to 4 decimal places.
- Construct the 95% confidence interval for the proportion of Americans who believe that NAFTA was bad for the United States. Enter your answer as an open interval of the form (a,b) and round to 3 decimal places.
- Can you conclude that more than half of Americans believe that NAFTA was bad for the United States?
- No conclusions can be drawn since the confidence interval contains 0.50.
- Yes, the entire confidence is above 0.50.
- No, the entire confidence interval is below 0.50.
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- The North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement signed by the United States, Canada and Mexico. This trade agreement has been controversial since its inception and Americans remain split on the issue. In a Gallup Poll conducted February 1-5, 2017, 448 out of 973 randomly selected Americans aged 18 or older stated that they believed that NAFTA was bad for the United States. a. Find the point estimate for the proportion of Americans who believe that NAFTA was bad for the United States. Round your answer to 4 decimal places. b. Find the margin of error for a 95% confidence interval. Round your answer to 4 decimal places. c. Construct the 95% confidence interval for the proportion of Americans who believe that NAFTA was bad for the United States. Enter your answer as an open interval of the form (a,b) and round to 3 decimal places. d. Can you conclude that more than half of Americans believe that NAFTA was bad for the United States? No, the…arrow_forwardA politician asked his constituents via a Facebook poll to help him how he should vote on a bill that would establish 150m Protester Exclusion Zones around abortion clinics in New South Wales, Australia. On his Facebook page, Philip Donato stated “I believe this is a matter of conscience and the views of my electorate should supersede my own.” After the poll closed, the final Facebook poll results had 78%78% of the 1960019600 voters indicating support for the Protester Exclusion Zones. Use our quick and approximate method to determine the margin of error for the final Facebook poll results. Give your answer as a percentage precise to two decimal places.arrow_forwardIn a survey, respondents were asked to disclose their political affiliation (Democrat, Independent, Republican) and also answer the question "Would you be willing to pay higher taxes if the tax revenue went directly toward deficit reduction?" Create a contingency table and determine whether the results suggest there is an association between political affiliation and willingness to pay higher taxes to directly reduce the federal debt. Use the a= 0.05 level of significance. Click the icon to view the results of the survey. Construct a contingency table. Democrat Independent Republican Willing to pay higher taxes? Yes. No 9 7 6 3 11 14arrow_forward
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