You examine a random sample of 200 pairs of swoosh sneakers coming on action line for defects. Your careful inspection reveals 800 scuffmarks and minor
What are the upper and lower control limits for the number of scuffmarks minor scratches, assuming 99.73 % confidence level?
What type of control chart(s) have you chosen to calculate the UCL and LCL for why?
If One pair had 12 scuffmarks and minor scratches, should any action be plain your answer including some discussion identifing of the type of variability