Question 4. Stud}.r the Madison, Wisconsin, Police Department data. (a) Use data on to = Legal Appearances Hours and X2: Eirtl'aordinarj,r Event Hours, construct a T2 chart. Does the process represented by the bivariate observations appear to be in control? set ot=0.05. You should pay attention to Twhich UCL formulation to use in this situation. Justify whyr use the UCL you selected. Us) Use the data of XI = Legal Appearances Hours and Kg: Extraordinary Event Hours to estimate tin and En that will be used for monitoring sture observation 1'={x1, K2}. Remember, the estimates of [.19 and E.) for future observation should be calculated Ercrm an in-control process. set o=.005