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Although poverty was still of great concern in the United States, some politicians claimed that the recovery from the Great Recession was noticeable, and that the poverty rate had been steadily declining especially in recent years. In 2017, the national poverty rate was 13.4%. It was believed that the national percent of people in poverty was even lower in 2018 than it was in 2017. To support this belief, a 2018 sample of n=16 jurisdictions produced a sample mean of 12.36% for the percent of people in poverty, with a sample standard deviation of 3%. Using a=0.10 significance level, test the claim that the national average percent of people in poverty had further declined in 2018 from the previous year.

Although poverty was still of great concern in the United States, some politicians claimed that the recovery from the Great Recession was noticeable, and that the poverty rate had been steadily declining especially in recent years. In 2017, the national poverty rate was 13.4%. It was believed that the national percent of people in poverty was even lower in 2018 than it was in 2017. To support this belief, a 2018 sample of n=16 jurisdictions produced a sample mean of 12.36% for the percent of people in poverty, with a sample standard deviation of 3%. Using a=0.10 significance level, test the claim that the national average percent of people in poverty had further declined in 2018 from the previous year.

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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Although poverty was still of great concern in the United States, some politicians claimed that the recovery from the Great Recession was noticeable, and that the poverty rate had been steadily declining especially in recent years. In 2017, the national poverty rate was 13.4%. It was believed that the national percent of people in poverty was even lower in 2018 than it was in 2017. To support this belief, a 2018 sample of n=16 jurisdictions produced a sample mean of 12.36% for the percent of people in poverty, with a sample standard deviation of 3%. Using a=0.10 significance level, test the claim that the national average percent of people in poverty had further declined in 2018 from the previous year.
Transcribed Image Text:Although poverty was still of great concern in the United States, some politicians claimed that the recovery from the Great Recession was noticeable, and that the poverty rate had been steadily declining especially in recent years. In 2017, the national poverty rate was 13.4%. It was believed that the national percent of people in poverty was even lower in 2018 than it was in 2017. To support this belief, a 2018 sample of n=16 jurisdictions produced a sample mean of 12.36% for the percent of people in poverty, with a sample standard deviation of 3%. Using a=0.10 significance level, test the claim that the national average percent of people in poverty had further declined in 2018 from the previous year.
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