Question 25Polls are often taken during an election season to determine what issues are important to registered US voters. A recent poll asked 1330 registered voters, "Is the economy the most important issue to you and your family,currently? Of the respondents, 35% answered "Yes."The 1330 registered voters is what?The populationA statisticAn inferenceA parameterNone of the above

Answered: Question 25 Polls are often taken…

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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Background: Morris Saldov conducted a study in Eastern and Central Newfoundland in 1988 to examine public attitudes towards social spending. In particular, the study tried to determine if knowing someone on public assistance (yes, no) affected one's views on social spending (too little, about right, too much). The data from the study is summarized in the table below. Too little About right Too much Total Source: Morris Saldov, Public Attitudes to Social Spending in Newfoundland," Canadian Review of Social Policy, 26, November 1990, pages 10-14. Directions: Conduct a chi-square test for independence to determine if the association between knowing someone on public assistance and views on social. spending is statistically significant. Yes No No 42 7 1. Choose the correct null and alternative hypotheses. O Ho: There is no association between knowing someone on public assistance and views on social spending. Ha There is an association between knowing someone on public assistance and views…
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Question Help One of the more popular statistics reported in the media is the president's job approval rating. The approval rating is reported as the proportion of the population who approve of the job that the sitting president is doing and is typically based on a random sample of registered voters where the sample size is the same week to week. Complete parts (a) and (b) below. a) This proportion tends to fluctuate from week to week. Name some reasons for the fluctuation in the statistic. Select all valid reasons below. YA. The proportion could be changing because people's attitudes are changing. O B. The proportion could be changing due to a large change in the composition of the population. O C. The proportion could be changing because the sampling size of the poll is changing. Y D. The proportion could be changing due to sampling error; different people are in the sample. b) A poll showed the approval rating to be 0.43 (43%). A second poll based on 2000 randomly selected voters…

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