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Political pundits talk about the "bounce" that a presidential candidate gets after his party's convention. In the past 40 years, it has averaged about 6 percentage points. Just before a recent convention, a random poll of 1300 likely voters found that 47% favored a particular candidate. Just afterward, another random sample of 1300 likely voters found that 49% favored that candidate. That's a two percentage point increase, but the pollsters claimed that there was no bounce. Explain. Let population 1 correspond to likely voters that favored the candidate after the convention and population 2 correspond to likely voters that favored the candidate before the convention. Find and interpret the 95% confidence interval for the difference between the percentages of likely voters that favored the candidate (population 1-population 2). Select the correct answer below and fill in the answer boxes within your choice. (Use ascending order. Round to one decimal place as needed.) O A. Since the 95% confidence interval ( %, %) does not contain 0%, it is not plausible that the bounce is zero. The pollsters should have instead claimed that there was sufficient evidence of a bounce. O B. Since the 95% confidence interval ( %, %) does not contain 0%, it is plausible that the bounce is zero. The pollsters should have instead claimed that there was no evidence of a bounce. OC. Since the 95% confidence interval %, %) contains 0%, it is plausible that the bounce is zero. The pollsters' claim that there was no Click to select and enter your answer(s) and then click Check Answer. All parto ahauin

Political pundits talk about the "bounce" that a presidential candidate gets after his party's convention. In the past 40 years, it has averaged about 6 percentage points. Just before a recent convention, a random poll of 1300 likely voters found that 47% favored a particular candidate. Just afterward, another random sample of 1300 likely voters found that 49% favored that candidate. That's a two percentage point increase, but the pollsters claimed that there was no bounce. Explain. Let population 1 correspond to likely voters that favored the candidate after the convention and population 2 correspond to likely voters that favored the candidate before the convention. Find and interpret the 95% confidence interval for the difference between the percentages of likely voters that favored the candidate (population 1-population 2). Select the correct answer below and fill in the answer boxes within your choice. (Use ascending order. Round to one decimal place as needed.) O A. Since the 95% confidence interval ( %, %) does not contain 0%, it is not plausible that the bounce is zero. The pollsters should have instead claimed that there was sufficient evidence of a bounce. O B. Since the 95% confidence interval ( %, %) does not contain 0%, it is plausible that the bounce is zero. The pollsters should have instead claimed that there was no evidence of a bounce. OC. Since the 95% confidence interval %, %) contains 0%, it is plausible that the bounce is zero. The pollsters' claim that there was no Click to select and enter your answer(s) and then click Check Answer. All parto ahauin

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
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Political pundits talk about the "bounce" that a presidential candidate gets after his party's convention. In the past 40 years, it has averaged about 6 percentage points. Just before a recent convention, a random poll of 1300 likely voters found that 47% favored a particular candidate. Just afterward, another random sample of 1300 likely voters found that 49% favored that candidate. That's a two percentage point increase, but the pollsters claimed that there was no bounce. Explain. Let population 1 correspond to likely voters that favored the candidate after the convention and population 2 correspond to likely voters that favored the candidate before the convention. Find and interpret the 95% confidence interval for the difference between the percentages of likely voters that favored the candidate (population 1-population 2). Select the correct answer below and fill in the answer boxes within your choice. (Use ascending order. Round to one decimal place as needed.) O A. Since the 95% confidence interval ( %, %) does not contain 0%, it is not plausible that the bounce is zero. The pollsters should have instead claimed that there was sufficient evidence of a bounce. O B. Since the 95% confidence interval ( %, %) does not contain 0%, it is plausible that the bounce is zero. The pollsters should have instead claimed that there was no evidence of a bounce. O C. Since the 95% confidence interval ( %, %) contains 0%, it is plausible that the bounce is zero. The pollsters' claim that there was no Click to select and enter your answer(s) and then click Check Answer. All partc ch
Transcribed Image Text:Political pundits talk about the "bounce" that a presidential candidate gets after his party's convention. In the past 40 years, it has averaged about 6 percentage points. Just before a recent convention, a random poll of 1300 likely voters found that 47% favored a particular candidate. Just afterward, another random sample of 1300 likely voters found that 49% favored that candidate. That's a two percentage point increase, but the pollsters claimed that there was no bounce. Explain. Let population 1 correspond to likely voters that favored the candidate after the convention and population 2 correspond to likely voters that favored the candidate before the convention. Find and interpret the 95% confidence interval for the difference between the percentages of likely voters that favored the candidate (population 1-population 2). Select the correct answer below and fill in the answer boxes within your choice. (Use ascending order. Round to one decimal place as needed.) O A. Since the 95% confidence interval ( %, %) does not contain 0%, it is not plausible that the bounce is zero. The pollsters should have instead claimed that there was sufficient evidence of a bounce. O B. Since the 95% confidence interval ( %, %) does not contain 0%, it is plausible that the bounce is zero. The pollsters should have instead claimed that there was no evidence of a bounce. O C. Since the 95% confidence interval ( %, %) contains 0%, it is plausible that the bounce is zero. The pollsters' claim that there was no Click to select and enter your answer(s) and then click Check Answer. All partc ch
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