Question: In the context of Quality Control, explain with example the term Process Capability of a machine. There are 3 ventilator tube making machines in a

  1. In the context of Quality Control, explain with example the term Process Capability of a machine.

There are 3 ventilator tube making machines in a factory. The tubes as produced by the machines

have a spread in lengths between 24.00 cm and 24.70 cm. Given the standard deviations of the 3

respective machines as follows:

Machine Standard Deviation (cm)

A 0.09

B 0.07

C 0.08

Calculate the Process Capability Index for each machine. Which machine has the worst Process

Capability Index ? Which machine has the best Process Capability Index ?

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