Question: For a certain process, control charts based on subgroups of size 4, have centerlines of 1.2 and 12.5, respectively. Given that the process has specification

  1. For a certain process, control charts based on subgroups of size 4, have centerlines of 1.2 and 12.5, respectively. Given that the process has specification limits of 11 and 14, compute the following:
  2. Process standard deviation.

  1. Compute CPU.

  1. Compute CPL.

  1. Compute CPK.

  1. Total nonconformity percentage.

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