(Number of defects per unit) A so-called c-chart or
Chapter 25, Problem 25.5(choose chapter or problem)
(Number of defects per unit) A so-called c-chart or defects-per-unit chart is used for the control of the number X of defects per unit (for instance, the number of defects per 10 meters of paper. the number of missing rivets in an airplane wing, etc.) (a) Set up formulas for CL and LCL, UCL corresponding to J.L ::':: 3u. assuming that X has a Poisson distribution. (b) Compute CL, LCL, and UCL in a control process ofthe number of imperfections in sheet glass; assume that this number is 2.5 per sheet on the average when the process is under control.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer