A maintenance group improves the effectiveness of its repair work by monitoring the number of maintenance requests that require a second call to complete the repair. Eight weeks of data is shown in the table below and the following data is given. A p control control chart was developed with the following trial control limits UCL = 0.3015, CL = 0.185. LCL = 0.0685 Sample S ample Number Number Size Nonconformjng l 100 10 100 15 100 31 100 13 100 24 100 12 100 23 100 15 0.30 UCL=0.3015 0.25 0.20 Proportion P=0.185 0.15 0.10 - LCL=0.0685 4 5 6 7 8 Sample 1. Is the process in-control (yes or no)? Why? What should be done? (9 points; 3 each) 2. Determine the value of the out of control signal (point; sample number 3). Show your work. (5 points)