Refer to the city and highway fuel consumption amounts of different cars listed in Data Set 16 of Appendix B. Compare the city fuel consumption amounts and the highway fuel consumption amounts, then answer the following questions without doing any calculations.

a. Does the conclusion that the highway amounts are greater than the city amounts appear to be supported with statistical significance?

b. Does the conclusion that the highway amounts are greater than the city amounts appear to have practical significance?

c. What is a practical implication of a substantial difference between city fuel consumption amounts and highway fuel consumption amounts?