A company that makes rainbow-colored shoestrings gives bonuses to employees based on how many shoestrings an employee produces. If the employee meets the quota expressed by the inequality of , where s is the number of shoestrings produced and h is the number of hours worked, the employee is eligible for the bonus. Based on the following table, which of these is a reasonable statement?

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.