this post was submitted on 24 Jul 2023

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Antarctic sea ice levels dive in 'five-sigma event', as experts flag worsening consequences for planet (www.abc.net.au)

submitted 1 year ago by Rumblestiltskin@lemmy.ca to c/worldnews@lemmy.ml

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[–] Rhaedas@kbin.social 2 points 1 year ago (1 children)

It's also used in business. Six sigma is the holy grail of "close to perfection".

[–] fearout@kbin.social 2 points 1 year ago (1 children)

Interesting, haven’t heard about that. Can you give an example of how it’s used in business? What is actually measured?

[–] Rhaedas@kbin.social 2 points 1 year ago (1 children)

I couldn't do better than Wikipedia.

[–] fearout@kbin.social 1 points 1 year ago (1 children)

Thanks. So I guess it doesn’t really measure anything in that field. Looks more like a strategy guideline and a set of techniques.

[–] Enkers@sh.itjust.works 1 points 1 year ago* (last edited 1 year ago)

If you read the section on etymology of the business term, it was referring to the metric of quality control. Basically it means your QC is so good that a bad unit gets shipped only a tiny fraction of the time.

Processes that operate with "six sigma quality" over the short term are assumed to produce long-term defect levels below 3.4 defects per million opportunities (DPMO). The 3.4 dpmo is based on a "shift" of ± 1.5 sigma explained by Mikel Harry.