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In analyzing the city and highway fuel efficiencies of many cars andtrucks, the mean difference in fuel efficiencies for the 634 vehicles was 7.48 mpg
In analyzing the city and highway fuel efficiencies of many cars andtrucks, the mean difference in fuel efficiencies for the 634
vehicles was 7.48
mpg with a standard deviation of 2.52
mpg. Find a95% confidence interval for this difference and interpret it in context.
The95% confidence interval for the difference in fuel efficiencies is left parenthesis nothing comma nothing right parenthesis(,) mpg. (Round to two decimal places asneeded.)
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