Lori Snetsinger

[Lori Snetsinger]

I found an answer to this on the interwebs, here’s an excerpt, as well as the link:
In the question process spread is given 10 units… And you have taken it as standard deviation directly….
This process spread of 10 units is assumed to be 6 sigma. Thus sigma is 10/6.

http://www.cram.com/flashcards/ss-stats-formulas-equations-5453251

[Lori Snetsinger]

The problem is that I don’t have the value for n to be able to look up the d2 value.

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