The olive trees in an orchard produce 3,000 pounds of olives a year. it takes 20 pounds
of olives to make 3 liters of olive oil. how many liters of olive oil can this orchard
produce in a year? if you get stuck, consider using the table.

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.