1) Define Statistical process control (15 points) 2) Discuss the three philosophical approaches to quality assurance acceptance sampling, process control and continuous improvement). (30 points) 3) State and explain the various control charts use in statistical process control; highlighting the circumstance in which each is appropriate (40 points). 4) Given the following control chart, would you say that the process appears to be performing appropriately? (15 points) 45 40 35 UCL MEDIAN LOL SAMPLE 30 25 20 15 10 14 15 13 13 9 11 9 4 5 E 2