Question

In automobile mileage and gasoline-consumption testing, 13 automobiles were road tested for 300 miles in both city and highway driving conditions. The following data were recorded for miles-per-gallon performance.

City	16.2	16.7	15.9	14.4	13.2	15.3	16.8	16.0	16.1	15.3	15.2	15.3	16.2
Highway	19.0	20.2	17.9	18.2	18.8	17.0	16.8	18.2	18.6	20.7	19.0	18.1	18.3

Use the mean, median, and mode to make a statement about the difference in performance for city and highway driving.

Compute the mean for the miles-per-gallon performance for city and highway driving. (Round your answers to two decimal places.)

city  miles per gallon highway  miles per gallon

Is the mean mileage better on the highway than in the city?

YesNo     

Compute the median for the miles-per-gallon performance for city and highway driving.

city  miles per gallon highway  miles per gallon

Is the median mileage better on the highway than in the city?

YesNo     

Compute the mode(s) for the miles-per-gallon performance for city and highway driving. (Enter your answers as a comma-separated list.)

city

miles per gallon highway

miles per gallon

Is the modal mileage better on the highway than in the city?

YesNo     

Make a statement about the difference in performance for city and highway driving conditions.

Miles-per-gallon performance is  ---Select--- better worse in highway driving condition than in city driving conditions.

Answer 1

mean for the miles-per-gallon performance for city =15.58

mean for the miles-per-gallon performance for highway=18.52

Is the mean mileage better on the highway than in the city? :Yes

median for the miles-per-gallon performance for city =15.90

median for the miles-per-gallon performance for highway=18.30

Is the median mileage better on the highway than in the city? :Yes

mode(s) for the miles-per-gallon performance for city =15.3

mode(s) for the miles-per-gallon performance for highway=18.2 ,19

Is the modal mileage better on the highway than in the city? :Yes

Miles-per-gallon performance is    better in highway driving condition than in city driving conditions.