Graph the function rule. tell whether the the graph is continuous or discrete. the height h, in inches, of the juice in a 20-oz bottle depends on the amount of juice j, in ounces, that you drink. this situation is represented by the function rule h=6-0.3j.

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.