1) The Insurance Institute of America wants to estimate the percentage of drivers age 18–20 who drive a car while impaired because of alcohol consumption. In a large study, 42722 males aged 18–20 were surveyed, and 5.1% of them said that they drove in the last month while being impaired from alcohol (data from Liu et al, JAMA 277(2)). The 95% confidence interval is (0.04891, 0.05308). a) Interpret the confidence interval in a sentence. b) In your opinion, with the information provided by the confidence interval, does alcohol-impaired driving appear to be a problem for males aged 18–20?
1) The Insurance Institute of America wants to estimate the percentage of drivers age 18–20 who drive a car while impaired because of alcohol consumption. In a large study, 42722 males aged 18–20 were surveyed, and 5.1% of them said that they drove in the last month while being impaired from alcohol (data from Liu et al, JAMA 277(2)). The 95% confidence interval is (0.04891, 0.05308). a) Interpret the confidence interval in a sentence. b) In your opinion, with the information provided by the confidence interval, does alcohol-impaired driving appear to be a problem for males aged 18–20?
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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1) The Insurance Institute of America wants to estimate the percentage of drivers age 18–20 who drive a car while impaired because of alcohol consumption. In a large study, 42722 males aged 18–20 were surveyed, and 5.1% of them said that they drove in the last month while being impaired from alcohol (data from Liu et al, JAMA 277(2)). The 95% confidence interval is (0.04891, 0.05308).
a) Interpret the confidence interval in a sentence.
b) In your opinion, with the information provided by the confidence interval, does alcohol-impaired driving appear to be a problem for males aged 18–20?
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