a. Calculate the proportion of survey respondents who have answered that they are in favor ofpeople having a right to abortion for any reason, using answers to Question #15 (Q15).b. Calculate a 95% confidence interval for the proportion in favor of the right to abortion forany reason in the surveyed population. Interpret your results.c. Suppose that the proportion of Americans who support abortion is 61%. Is the proportion infavor of abortion access in the surveyed population different from the proportion in the generalpopulation? Conduct a hypothesis test to evaluate this question, using a significance level ofa=.05. State your conclusion in English. Note: You do NOT need the size of the U.S. populationto answer this question.d. Discuss whether the data meet the sample size requirements for the procedures you used inpart b and c 01511 1: in favor1 2: against1111111111111111111111111111111212111111111111121111

The question is about confidence interval and proportion Given : 1 : In favor , 2 : against To…

Answered: a. Calculate the proportion of survey…

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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Construct a 95% confidence interval for p1 - p2 for a survey that finds 30% of 240 males and 41% of 200 females are opposed to the death penalty. Group of answer choices a.(-0.200, -0.021) b.(-1.532, 1.342) c.(-1.324, 1.512) d.(-0.561, 0.651)
In September 2011, Gallup surveyed 1,004 American adults and asked them whether they blamed Barack Obama a great deal, a moderate amount, not much, or not at all for U.S. economic problems. The results showed that 53% of respondents blamed Barack Obama a great deal or a moderate amount. Calculate the 99% confidence interval for the proportion of all American adults who blame Barack Obama a great deal or a moderate amount for U.S. economic problems. O (0.504, 0.556) O (0.499, 0.561) O (0.489, 0.571) O The confidence interval cannot be determined from the information given.
The dean of students at a large college is interested in learning about their opinions regarding the percentage of first-year students who should be given parking privileges in the main lot. He sends out an email survey to all students about this issue. A large number of first-year students reply but very few sophomores, juniors, and seniors reply. Based on the responses he receives, he constructs a 90% confidence interval for the true proportion of students who believe first-year students should be given parking privileges in the main lot to be (0.71, 0.79). Which of the following may have an impact on the confidence interval, but is not accounted for by the margin of error? response bias O nonresponse bias O sampling variation O undercoverage bias
1. What conclusions can you draw about the proportions of Satisfaction with Quality of Care from Nurses and Satisfaction with Quality of Care from Specialists from the chart? A. The confidence intervals overlap, so we can conclude that the proportions are significantly different. B. The confidence intervals do not overlap, so we can conclude that the proportions are significantly different. C. The confidence intervals do not overlap, so we cannot conclude that the proportions are significantly different. D. The confidence intervals overlap, so we cannot conclude that the proportions are significantly different. 2. What conclusions can you draw about the proportions of the Satisfaction with Quality of Care from Nurses and Satisfaction with Quality of Care from Practitioners from the chart? A. The confidence intervals do not overlap, so we cannot conclude that the proportions are significantly different. B. The confidence…
1a) Manual Transmission Automobiles In 1980 more than 35% of cars purchased had a manual transmission (i.e. stick shift). By 2007 the proportion had decreased to 7.7%. A random sample of college students who owned cars revealed the following: out of 130 cars, 24 had stick shifts. Estimate the proportion of college students who drive sticks with 90% confidence. Use a graphing calculator and round the answers to at least three decimal places. b) Belief in Haunted Places A random sample of 305 college students were asked if they believed that places could be haunted, and 44 responded yes. Estimate the true proportion of college students who believe in the possibility of haunted places with97% confidence. According to Time magazine, 37% of Americans believe that places can be haunted. Round the answers to at least five decimal places. Use a graphing calculator. ___ < p < ___ c) Travel to Outer Space A CBS News/New York Times poll found that 329 out of 763 randomly selected…
A political researcher takes a survey of 310 randomly selected registered voters in Orlando, and each person was asked who they plan on voting for in the 2024 presidential election. 110 said they plan on voting for Candidate A, 185 said they plan on voting for Candidate B, and 15 were unsure or plan to vote for another candidate. The researcher wants to construct a 95% confidence interval for the proportion of all registered voters in Orlando who plan to vote for Candidate B. What is the point estimate? Round final answer to 3 decimal places.
University Food service is interested in the percentage of students on campus who would choose a vegan meal if offered (as an addition to a menu that contained a vegetarian and non-vegetarian option). They receive responses from 45 students and find that 13 of them would at least occasionally purchase that choice. A. Construct a 95% confidence interval. B. Briefly interpret this interval in the context of the problem.
A TV report conducted a survey of 908 people in Phoenix metro area and found that 28% of the population believe that the suns will win the NBA finals next year. In the accompanying dialogue, the reporter states, we are 94% confident that the true proportion of people in Phoenix metro area who believe that the suns will win the NBA finals next year lies between 25% and 31% . What does 28% represent in the report? A. a confidence level B. parameter C. a statistic D. a confidence interval E. a margin of error
1.A poll questioned 800 students about their views on pizza for lunch at school. The results indicated that 65% of respondents felt that pizza was a must for lunch at school and would quit school if there was no pizza at lunch. a) Determine the 90% confidence interval. b) What is the margin of error for this response at the 90% confidence level?
In a poll, 69% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted of murder?" The margin of error in the poll was 2%, and the estimate was made with 96% confidence. At least how many people were surveyed?

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