Match each type of process with the correct recommended value of process capability ratio. Assume two-sided specifications. a. Existing Processes [ 1.33 or 1.50 or 1.67] b. New Processes [ 1.33 or 1.50 or 1.67] c. Safety, strength, or critical parameter for an existing process [ 1.33 or 1.50 or 1.67] d. Safety, strength, or critical parameter for a new process [ 1.33 or 1.50 or 1.67]