Use the line of best fit to predict the total amount of money earned in tips after working 12 hours. (8,80)(2,20)

Sorry guys but as you have a small brain

The graph of g(x) is a translation of y = which equation represents g(x)?

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.