Question

A study is done to compare the fuel efficiency of cars. cars in group 1 generally get about 23 miles per gallon/ cars in group 2 generally get about 44 miles per gallon. compare the groups by their means. then make an inference and give a reason the inference might be true.

the mean for group [__] is less than the mean for group [__].
the cars in group [__] generally are more fuel-efficient.
the cars in group [__] may be smaller

Answer 1

Explanation:

the mean for group 1 is less than the mean for group 2.

the cars in group 2 generally are more fuel-efficient.

the cars in group 2 may be smaller