Cars and trucks again In Exercise 17, after deleting an outlying value of -27, the mean
Chapter 24, Problem 19(choose chapter or problem)
Cars and trucks again In Exercise 17, after deleting an outlying value of -27, the mean difference in fuel efficiencies for the 632 vehicles was 7.37 mpg with a standard deviation of 2.52 mpg. Find a 95% confidence interval for this difference and interpret it in context.
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