Directions: Type your answer in the box. Destiny is making 24 wooden picture frames for a project. Each frame requires 16 inches of wood trim. She
completed of the frames on the first day. Exactly how many inches of wood trim does she need to complete
the remaining frames on the second day?
inches

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.