A machine at Detroit Axle produces rods that go into their axle assemblies. The quality control department took periodic samples [Sample size=10} in order to assess the process. Base your analysis on the eight samples below [the dimension that was measured was part length): Sampl e 1 2 3 4 5 E 7 B {n=10) Average 20.9 21.0 21.1 20.5 20.8 20.7 21.1 21.3 Range 0.9 1.0 1.5 0.8 0.8 1.1 0.9 0.9 a} Using the values in the Table of Constants [from noteslbook and attached to the Exam Instructions] calculate the following values for the sample means: Upper Control Limit: Midpoint: Lower Control Limit: b} Using the values in the Table of Constants [from notesr'book and attached to the Exam Instructions) calculate the following values for the sample ranges: Upper Control Limit: Midpoint: Lower Control Limit: c] Is the process in control? Why or Why not