A survey was conducted to research the public's views on potholes. When the results were analyzed, researchers found that 65% of adults age 20 to 40 view potholes as a serious problem, but only 47% of adults age 60 and older view potholes as a serious problem. Researchers are interested in the difference in proportions of adults age 60 and over and adults age 20 to 30. The standard error for the difference in proportions is 0.011. Which of the following is the margin of error for a 95% confidence interval?
A survey was conducted to research the public's views on potholes. When the results were analyzed, researchers found that 65% of adults age 20 to 40 view potholes as a serious problem, but only 47% of adults age 60 and older view potholes as a serious problem. Researchers are interested in the difference in proportions of adults age 60 and over and adults age 20 to 30. The standard error for the difference in proportions is 0.011. Which of the following is the margin of error for a 95% confidence interval?
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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A survey was conducted to research the public's views on potholes. When the results were analyzed, researchers found that 65% of adults age 20 to 40 view potholes as a serious problem, but only 47% of adults age 60 and older view potholes as a serious problem. Researchers are interested in the difference in proportions of adults age 60 and over and adults age 20 to 30. The standard error for the difference in proportions is 0.011.
Which of the following is the margin of error for a 95% confidence interval?
Group of answer choices
0.021
0.028
0.011
0.018
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