The North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement signedby the United States, Canada and Mexico. This trade agreement has been controversial since its inceptionand Americans remain split on the issue. In a Gallup Poll conducted February 1-5, 2017, 472 out of 1025randomly selected Americans aged 18 or older stated that they believed that NAFTA was bad for the UnitedStates.a. Find the point estimate for the proportion of Americans who believe that NAFTA was bad for theUnited 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 wasbad for the United States. Enter your answer as an open interval of the form (a,b) and round to 3decimal places.d. Can you conclude that more than half of Americans believe that NAFTA was bad for the UnitedStates?O No, the entire confidence interval is below 0.50.O Yes, the entire confidence is above 0.50.O No conclusions can be drawn since the confidence interval contains 0.50.

Answered: Image /qna-images/answer/1e296e5c-c02f-43ac-902d-caa5b3bd3626.jpg

Answered: The North American Free Trade Agreement…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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5. As a manufacturer of golf equipment, the Spalding Corporation wants to estimate the proportion of golfers who are left-handed. a. How many golfers must be surveyed if we want to be 99% confident that the sample proportion is within 0.025 of the actual value? b. Ifa prior study indicates that 15% of golfers are left-handed, how many golfers must be surveyed if we want to be 99% confident that the sample proportion is within 0.025 of the actual value? MacBook Air
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Among college students, the proportion p who say they’re interested in their congressional district’s election results has traditionally been 75%. After a series of debates on campuses, a political scientist claims that the proportion of college students who say they’re interested in their district’s election results is more than 75%. A poll is commissioned, and 210 out of a random sample of 260 college students say they’re interested in their district’s election results. Is there enough evidence to support the political scientist's claim at the 0.10 level of significance?Perform a one-tailed test. Then complete the parts below.Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) A. State the null hypothesis Hoand the alternative hypothesis H1 B. Find the critical value. (Round to three or more decimal places.) C. Is there enough evidence to support the political scientist's claim that the proportion of college students who…
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As chairperson of the Rogers County Task Force on Aging, you wish to estimate the proportion of senior citizens in the region who would use a mobile medical check-up program if such a service was implemented. A random sample of 44 senior citizens was polled and it was found that 22 would use such a service. a. Let p represent the proportion of all senior citizens in the region who would utilize the mobile medical check-up program. Find a point estimate for p. (Round result to 3 decimal places.) b. Find a 95% confidence interval for p. (Round results to 3 decimal places.) ? ♥ < c. The Rogers County Director tasks you with doing a larger study, to develop a more precise estimate. The director would like an estimate for the proportion of retired people who would use the mobile medical check-up program that is within 5% of the population percentage, with 95% confidence. Using the original study (described above) as a preliminary estimate for the population proportion p, what is the minimum…
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according to the national household survey on drug use and health, when asked in 2017, 31.0% of those aged 18 to 25 years said they had used cigarettes in the past year, 7.7% said they had used smokeless tobacco
Among college students, the proportion p who say they're interested in their congressional district's election results has traditionally been 65%. After a series of debates on campuses, a political scientist claims that the proportion of college students who say they're interested in their district's election results is more than 65%. A poll is commissioned, and 178 out of a random sample of 265 college students say they're interested in their district's election results. Is there enough evidence to support the political scientist's claim at the 0.10 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H, and the alternative hypothesis H. p H, :0 H, : (b) Determine the type of test statistic to use. (Choose one) ▼ O=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the…
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