Follow-up Practice 1) If the specification limits have an upper limit of 7 and a lower limit of 5 , what is the capability of this process (i.e., find the Cpk index) for the first sample above (i.e., the sample with mean =6.863). As before, assume =1. 2) Instead of measuring specific numbers, such as those seen above, you are simply determining if the finished good turns on or fails to turn on. What type of control chart would you use? 3) Now assume that you need to find the number of defects in the finished good. What type of control chart would you use