A poll asked college students in 2016 and again in 2017 whether they believed the FirstAmendment guarantee of freedom of the press was secure or threatened in the country today. In2016, 2087 of 3103 students surveyed said that freedom of the press was secure or very secure.In 2017, 1930 of 2988 students surveyed felt this way.b. Use the sample data to construct a 95% confidence interval for the difference in theproportions of college students in 2016 and 2017 who felt freedom of religion was secure orvery secure. How does your confidence interval support your hypothesis test conclusion?

In 2016, 2087 of 3103 students surveyed said that freedom of the press was secure or very secure. In…

Answered: A poll asked college students in 2016…

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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The sports section of the East Mule Shoe Gazette runs a weekly question that readers can answer online. After the local university’s football squad was beaten by its rival for the forty-second straight season, the question was “Do you think that the coach needs to go?” Of the 182 people who responded, 89 percent said Yes. When people say that the newspaper poll is biased, they mean that: A) students may have different opinions than townspeople B)Repeated polls would give results that are very different from each other C)Repeated polls would miss the truth about the population in the same direction D) The question asked shows a preferance on a gender or racial basis
part c + d
.
6. Can professional astrologers reliably determine when a person was born based on their personality? In a 1985 study designed to answer this question, 116 participants filled out questionnaire to determine their personality profiles. Astrologers were then presented with the personality profiles and asked to determine which season (Spring, Summer, Fall, or Winter) that a person was born in. The astrologers in the study were able to pick the correct personality profile 35 times out of 116. If there is really no connection between birth data and personality, we would expect the astrologers to be correct 1/4 of the time just by guessing (if we make the reasonable assumption that one-fourth of the population is born in each season). Perform a one-tailed hypothesis test of the claim that astrologers can match birth seasons to personality profiles better than chance. a. State the null hypothesis in symbols and words.b. State the alternative hypothesis in symbols and words. c. What is the…
The World View shown below gives the percentage of people who believe that "the free enterprise system and free market economy is the best system on which to base the future of the world." Market Reliance vs. Government Reliance? A public opinion poll conducted in countries from around the world found a striking global con- sensus that the free market economic system is best. In all but one country polled, a majority or plurality agreed with the statement that "the free enterprise system and free market econ- omy is the best system on which to base the future of the world." Source: GlobeScan Toronto-London-San Francisco 2010. The free enterprise system and free market economy is the best system on which to base the future of the world. Agree United States Canada Brazil Mexico Colombia Germany United Kingdom Spain Russia France China Philippines India Kenya Nigeria World average (Click to select) V Fam 31 59 59 (Click to select) V 57 57 55 52 52 67 68 67 65 59 58 61 61 57 40 Disagree 29…
The following is an example of which type of bias: Would you be willing to drive an electric car so that less pollution can be put in the atmosphere to help reduce global warming? A) self interst study B) voluntary response C) loaded question D) non response bias
A survey of 125 freshmen business students at a local university produced the results listed below. How many students took only music? 30 took English;33 took math;32 took music;14 took English but not math;9 took math and music;12 took English and music;3 took all three
C) do you think that early adolescents really are interested in these topics?
A survey asked 816 college freshmen whether they had been to a movie or eaten in a restaurant during the past week. The following information was obtained: 383 freshmen had been to neither a movie nor a restaurant, and 268 had been to a movie. If 94 of those who had been to a movie had not been to a restaurant, how many of the surveyed freshmen had been to the following? both a movie and a restaurant a movie or a restaurant a restaurant a restaurant but not a movie
A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 309 people over the age of 55, 77 dream in black and white, and among 309 people under the age of 25, 18 dream in black and white. Use a U.U5 signiticance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25 Complete parts (a) through (c) below. Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and alternative hypotheses for the hypothesis test? Identify the test statistic. z= (Round to two decimal places as needed.) Identify the P-value. P-value= (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is ______ the significance level of a = 0.05, so ______ black and white is ____ the proportion for those under 25. There is…
A survey of 150 freshmen business students at a local university produced the results listed below. How many students took only religion? 35 took history;42 took science;43 took religion;19 took history but not science;14 took science and religion;15 took history and religion;6 took all three
Select the correct statement. This student is arguing against school choice. Which statement best serves as the writer’s claim? School Choice: Good Intentions, Extremely Harmful Since the desegregation of schools in America, the question of school choice has been at the center of many heated debates. Some argue that charter schools or school choice programs put public schools at risk. Those people also argue that some neighborhood schools would suffer if kids had the freedom to commute to schools of their choice. Others argue that parents should control where their students learn, even if it means going to a school outside of their zoned area. However, school choice highlights problems with the inequities in the school system. All schools should provide students with quality education and school choice prevents that from happening.

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