SOLUTION: #5 In 2011 the U.S. Department of Transportation reported with 95% confidence that the average length of a motor vehicle trip in the United States was 9.72 miles with a margin or

Question 1120293: #5
In 2011 the U.S. Department of Transportation reported with 95% confidence that the average length of a motor vehicle trip in the United States was 9.72 miles with a margin or error of 0.22 miles.
With 95% confidence the authors of the report are claiming that the true average length of a motor vehicle trip in the United States is between _____ and ___ miles.
The level of confidence for this estimate is ______%.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
This would be 9.72-0.22 or 9.50 miles lower limit
and 9.72+0.22 or 9.94 miles upper limit
This is a 95% CI as stated.
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