Cameron, Arthur, and Jamie are playing soccer. Their locations are recorded by a motion tracking system. The grid shows distances in meters. Who is closer to​ Cameron? Explain. Arthur is about _ meters away from​ Cameron, and Jamie is about _ meters away from​ Cameron, so Jamie or Arthur is closer to Cameron.
​(Round to the nearest whole number as​ needed.)

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.