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As the president outlined sweeping new proposals aimed to reduce gun violence, a new CBS News/New York Times poll found that Americans back the central components of the president's proposals, including background checks, a national gun sale database, limits on high capacity magazines and a ban on semi-automatic weapons. Asked if they generally back stricter gun laws, more than half of respondents-54%-support stricter gun laws... That is a jump from April-before the Newtown and Aurora shootings-when only 39% backed stricter gun laws but about the same as ten years ago. *** This poll was conducted by telephone from January 11-15, 2013, among 1,110 adults nationwide. Phone numbers were dialed from samples of both standard land-line and cell phones. The error due to sampling for results based on the entire sample could be plus or minus three percentage points. uestions What are the sample and the statistic for the CBS News poll?

As the president outlined sweeping new proposals aimed to reduce gun violence, a new CBS News/New York Times poll found that Americans back the central components of the president's proposals, including background checks, a national gun sale database, limits on high capacity magazines and a ban on semi-automatic weapons. Asked if they generally back stricter gun laws, more than half of respondents-54%-support stricter gun laws... That is a jump from April-before the Newtown and Aurora shootings-when only 39% backed stricter gun laws but about the same as ten years ago. *** This poll was conducted by telephone from January 11-15, 2013, among 1,110 adults nationwide. Phone numbers were dialed from samples of both standard land-line and cell phones. The error due to sampling for results based on the entire sample could be plus or minus three percentage points. uestions What are the sample and the statistic for the CBS News poll?

MATLAB: An Introduction with Applications
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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Name: To be graded, all assignments must be completed and submitted on the original book page. Read The Times excerpt below. Then, answer the questions that follow. Americans and Their Guns Title: Authors: BEYOND THE NUMBERS 4.6 Practicing What You Know Source: *** Section Number: Poll: Majority of Americans Back Stricter Gun Laws Sarah Dutton, Jennifer De Pinto, Anthony Salvanto, Fred Backus and Leigh Ann Caldwell CBS News January 17, 2013, http://www.cbsnews.com/8301- 250_162-57564597/poll-majority-of-americans-back-stricter-gun- laws/. As the president outlined sweeping new proposals aimed to reduce gun violence, a new CBS News/New York Times poll found that Americans back the central components of the president's proposals, including background checks, a national gun sale database, limits on high capacity magazines and a ban on semi-automatic weapons. Asked if they generally back stricter gun laws, more than half of respondents-54%-support stricter gun laws... Same That is a jump from April-before the Newtown and Aurora shootings-when only 39% backed stricter gun laws but about the same as ten years ago. This poll was conducted by telephone from January 11-15, 2013, among 1,110 adults nationwide. Phone numbers were dialed from samples of both standard land-line and cell phones. The error due to sampling for results based on the entire sample could be plus or minus three percentage points. Questions 1. What are the sample and the statistic for the CBS News poll?
Transcribed Image Text:Name: To be graded, all assignments must be completed and submitted on the original book page. Read The Times excerpt below. Then, answer the questions that follow. Americans and Their Guns Title: Authors: BEYOND THE NUMBERS 4.6 Practicing What You Know Source: *** Section Number: Poll: Majority of Americans Back Stricter Gun Laws Sarah Dutton, Jennifer De Pinto, Anthony Salvanto, Fred Backus and Leigh Ann Caldwell CBS News January 17, 2013, http://www.cbsnews.com/8301- 250_162-57564597/poll-majority-of-americans-back-stricter-gun- laws/. As the president outlined sweeping new proposals aimed to reduce gun violence, a new CBS News/New York Times poll found that Americans back the central components of the president's proposals, including background checks, a national gun sale database, limits on high capacity magazines and a ban on semi-automatic weapons. Asked if they generally back stricter gun laws, more than half of respondents-54%-support stricter gun laws... Same That is a jump from April-before the Newtown and Aurora shootings-when only 39% backed stricter gun laws but about the same as ten years ago. This poll was conducted by telephone from January 11-15, 2013, among 1,110 adults nationwide. Phone numbers were dialed from samples of both standard land-line and cell phones. The error due to sampling for results based on the entire sample could be plus or minus three percentage points. Questions 1. What are the sample and the statistic for the CBS News poll?
2. What are the population and the parameter? 3. This survey reports a margin of sampling error of about 3%. Follow your instructor's instructions to confirm the margin of error. AMOU 4. Find an 80% confidence interval for the true proportion of Americans who "generally back stricter gun laws." What percent decrease in width is this interval from a 95% interval? 5. The headline on this article refers to the "Majority of Americans." Carefully explain if the reference is to the population or the sample. Is the headline statistically defensible? Be sure to offer a clear defense of your answer by citing appropriate statistical evidence from the article.
Transcribed Image Text:2. What are the population and the parameter? 3. This survey reports a margin of sampling error of about 3%. Follow your instructor's instructions to confirm the margin of error. AMOU 4. Find an 80% confidence interval for the true proportion of Americans who "generally back stricter gun laws." What percent decrease in width is this interval from a 95% interval? 5. The headline on this article refers to the "Majority of Americans." Carefully explain if the reference is to the population or the sample. Is the headline statistically defensible? Be sure to offer a clear defense of your answer by citing appropriate statistical evidence from the article.
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 1. What are the sample and the statistic for the CBS News poll?

Sample : 1110 adults nationwide that called 

Statistic : those out of the 1110 adults in favor of strict gun laws 

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