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Name: Fifty-eight percent of Americans in the latest Gallup poll say they wo
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Description: Fifty-eight percent of Americans in the latest Gallup poll say they would get a COVID-19 vaccine, up from a low of 50% in September. The result is based on self-administered web surveys conducted Oct. 19-Nov. 1, 2020, with a random sample of 2,985 ad

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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Fifty-eight percent of Americans in the latest Gallup poll say they would get a COVID-19 vaccine, up from a low of 50% in September. The result is based on self-administered web surveys conducted Oct. 19-Nov. 1, 2020, with a random sample of 2,985 adults, aged 18 and older, who are members of the Gallup Panel.

For results based on any individual sample, the margin of sampling error is ±3 percentage points at the 95% confidence level.

a Find a 95% confidence interval for the percentage of Americans who would get a COVID-19 vaccine. Interpret your interval.
b List two or more biases for this survey. Explain.

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