Group 1 Group 2
Leveled Practice In 6 and 7, complete each statement.
6. 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.
is less than the mean for
The mean for Group
Group
The cars in Group
generally are more fuel-efficient.
23 miles
per gallon
44 miles
per gallon
The cars in Group
may be smaller.