2 Points
The volume of a cube depends on the length of its sides. This can be written
in function notation as (s). What is the best interpretation of y(4) - 64?
) A. 4 of these cubes will have a total volume of 64 cubic feet.
O
B. 4 sides of the cube have a total length of 64 feet.
C. A cube with side lengths of 4 feet has a volume of 64 cubic feet.
O
D. A cube with a volume of 4 cubic feet has side lengths of 64 feet.
BUMI

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.