For a process which is in a state of statistical control (within ± 3s ) estimated process standard deviation (s) is 3 mm

Q. For a process which is in a state of statistical control (within ± 3s ), estimated process standard deviation (s) is 3 mm. The specification limits for the corresponding product are 100 ± 7 mm. The capability ratio Cr is _______(round off to 3 decimal places)

Ans: 0.777 – 0.779

Sol: