Question: S-sigma limits, just state that!) (4 pts) 2. A quality control engineer at a pet products manufacturing plant was concerned about the number of visible

S-sigma limits, just state that!) (4 pts) 2. A
S-sigma limits, just state that!) (4 pts) 2. A quality control engineer at a pet products manufacturing plant was concerned about the number of visible flaws in a particular type of dog blanket. The engineer selected 20 dog blankets at random and counted the number of flaws on each. She recorded the following data: flaws Sample1 Sample1 1 2 3 4 5 flaws Samplel 4 6 10 7 5 8 9 9 5 10 16 5 10 5 8 11 12 13 14 15 flaws Samplel flaws 3 16 16 9 17 7 3 18 5 9 19 4 5 20 9 The total number of flaws is 147 (i) Find the average number of flaws per blariket. (2 pts) (ii) Find the centerline for a c-chart. (1 pt) (ii) Find the 3-sigma limits for a c-chart. (2 pts) (iv) Construct the control chart and determine Ivhether the process is "in-control" or "out-of-control". (Be sure to justify your answer!) (3 pts) (v) If any of the points are outside the 3-sigma limits, assume an assignable cause has been found and remove the point(s). (a) Which point(s), if any, should be removed? (1 pt) (b) Determine the revised centerline. (1 pt) (c) Find the revised 3-sigma limits. (1 pt) (a) Construct the new control chart and determine whether the new process is "in-control". Justify your answer! (If the process was already in control, just state that here.) (3 pts)

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