2. An automobile manufacturer is creating a new design for the brakes of its vehicles.
Researchers for the company conduct a brake
test where the vehicle is stopped from 60
miles per hour to 0 miles per hour 10 times
using the old design and then 10 times again
using the new design. The distance in feet for
the vehicle to completely stop each time is
recorded by researchers. The results
are provided in the table below. How does the
mean distance for the new design compare to
the mean distance for the old design?
Old Design 124 126 123 125 120 122 127 124 125 121

New Design 121 120 119 122 118 122 119 117 118 119