Maggie filled the glasses shown below completely with water. The total amount of water that Maggie poured into the glasses is 120 cubic centimeters. What is the height of glass 1? Round your answer to the nearest hundredths. (Use π = 3.14.) Note that all measurements are in centimeters and images are not drawn to scale. A cylinder with width 5.5 and height unknown is labeled glass 1, and a cone with height 6.8 and width 5.2 is labeled glass 2. 3.03 centimeters 4.82 centimeters 5.64 centimeters 7.47 centimeters

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.