# Number of deaths for 3.8 and six sigma process.

Six Sigma – iSixSigma Forums Old Forums General Number of deaths for 3.8 and six sigma process.

Viewing 4 posts - 1 through 4 (of 4 total)
• Author
Posts
• #38360

Akhi
Participant

Can anybody help me.
1.What is number of deaths in a 3.8 sigma process and what is the number of deaths in 6 sigma process
2.What is the number of plane crash in a year for 3.8 sigma process and what is for 6 sigma process.

0
#114678

Bobd
Participant

Well, the chart I has says…
3.8sigma = 10,724 defects per million
6 sigma = 3.4 defects per million
defects being either deaths or plane crashes…..
I guess Six Sigma is really good, unless you’re one of the 3.4 ;-)

0
#114680

Thaly
Member

The 6 sigma logic won’t apply to your scenario unless you know that the deaths are distributed normally (or atleast close). Usually such discrete events resemble more of a Poisson distribution (or other discrete distributions).
If you have the right tools, you could build a neural network model (or a regression model) of your death/plane crash and predict your outcome.
Thaly

0
#189626

Noel
Participant

Just incase anybody is still looking for this info…

3.8 Sigma 98.93%
6 Sigma 99.99966%

20,000 lost mails every hour
7 mails lost every hour

Unsafe drinking water for almost 15 minutes each day
One unsafe minute every seven months

5000 incorrect surgical operations every week
1.7 incorrect surgical operations every week

Two short or long landings at most major airports each day
One short or long landing every 5 years

200,000 wrong drug prescriptions every year
68 wrong drug prescriptions every year

No electricity for almost 7 hours each month
One hour without electricity every 34 years

0
Viewing 4 posts - 1 through 4 (of 4 total)

The forum ‘General’ is closed to new topics and replies.