E Area of Prisms
ent Active
ding the Surface Area of a Triangular Prism
Find the surface area of the triangular prism.
ft?
5 ft
The area of one of the triangular faces is
The surface area of the prism is ft
5 ft
14 ft
8 ft
6 ft
Plz help

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.