A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults, askedthose adults about their party affiliation (Democrat, Republican or none) and their opinion of how the USeconomy was changing ("getting better," "getting worse" or "about the same"). The results are shown in thetable below.bettersameworseRepublican3810444Democrat1287137none2190118Express each of your answers as a percent rounded to the nearest tenth (for example, 12.3%).a. What percent of survey respondents identified themselves as affiliated with neither party (marginalprobability)?b. What percent of survey respondents thought the economy was getting better and were affiliated withneither party (joint probability)?c. What percent of those affiliated with neither party thought the economy was getting better (conditionalprobability)?

Answered: Image /qna-images/answer/e39e33b9-5a06-41ae-a8f9-d8348719ec97.jpg

Answered: A CBS News poll conducted June 10 and…

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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A report included data from a study in which 789 people in a representative sample of college students age 18 to 24 were asked how they perceive their money management skills. Possible responses were excellent, good, average, not very good, and poor. Each student in the sample was also classified by sex, resulting in the data in the table. Perception of Money Management Skills Not Very Good Excellent Good Average Poor Male 102 138 88 17 8 Female 81 193 136 22 4 Is there convincing evidence that there is an association between sex and how students perceive their money management skills? Test the relevant hypotheses using a significance level of a = 0.05. State the appropriate null and alternative hypotheses. O Ho: The proportions falling into each of the four perceptions of money management skills are the same for both sexes. H: The proportions falling into each of the four perceptions of money management skills are not the same for both sexes. O Ho: There is an association between sex…
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