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What is the Ppk of a process with a spread of 24 units, an average of 68, an upper limit of 82 and a lower
What is the Ppk of a process with a spread of 24 units, an average of 68, an upper limit of 82 and a lower limit of 54?
A. 1.68
B. 2.00
C. 4.00
D. 4.42
Answer: C -> why answer C?6 sigma = spread= 24 unit? then(68-54)/(24/2) = 1.17?
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