2. The number of defects found in 20 samples of 100 Frost Ice-cream Company flavors taken on a daily basis from a production line over a five-week period is given below. Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Defects 3 8 6 9 7 1 9 3 6 7 11 14 7 8 4 5 2 4 6 1 a. Plot these data on a run chart, computing the average value [center line). b. According to the concepts of Six-Sigma Quality, what the quality level for this process? (Use the conversion table provided.) c. Do you suspect that any special causes are present? Why?