Answer:
Process capability index = 0.3571
Explanation:
Process Capability Index or Capability ratio is a measure of the ability of a process to produce output within certain limitations.
It is given by the equation:
Capability Ratio = (USL - LSL) / (6σ)
Here,
= (23.2 - 22.9) / 6x0.14
=(0.3) / 0.84
= 0.3571