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In: Statistics and Probability

The table provides summary statistics on highway fuel economy of cars manufactured in 2012 (from Exercise...

The table provides summary statistics on highway fuel economy of cars manufactured in 2012 (from Exercise 5.32). Use these statistics to calculate a 98% confidence interval for the difference between average highway mileage of manual and automatic cars, and interpret this interval in the context of the data.

Hwy MPG, Automatic Hwy MPG, Manual
Mean 22.92 27.88
SD 5.29 5.01
n 26 26



lower bound:  mpg (please round to two decimal places)
upper bound:  mpg (please round to two decimal places)

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