Forum Replies Created
Forum Replies Created
January 13, 2009 at 2:25 pm #179674
Question was simple and I guess Sandeep’s reply would have answered.0January 13, 2009 at 2:25 pm #179673
Question was simple and I guess Sandeep’s reply would have answered.0May 20, 2008 at 12:00 pm #172105September 26, 2007 at 5:42 pm #161809
Yea, so it’s homework. This sigma calculation stuff is pretty stupid. Just help me and let me get on with something useful.0October 26, 2006 at 9:01 am #145752
Thanks Thomas! My email ID is [email protected].0October 25, 2005 at 1:27 pm #128815August 13, 2005 at 11:36 am #125015
As you said it is a standard valueit should be greater than or equal to 1.33Sathis0February 17, 2005 at 8:04 pm #115044
Excellent post. Thanks for the insight.0February 17, 2005 at 4:08 pm #115027
Do you monitor your multiple streams using a Hotelling’s T^2???
And if you detect an out of control situation, do you have to revert to a traditional Shewhart chart to determine which stream is causing the issue?0February 17, 2005 at 4:03 pm #115026
Try this page. It has some useful explanations.
https://www.isixsigma.com/tt/cause_and_effect/0February 17, 2005 at 3:58 pm #115024February 4, 2005 at 1:48 pm #114479
Here’s the answer to your homework problem.
https://www.isixsigma.com/forum/showmessage.asp?messageID=635830January 24, 2005 at 5:33 pm #113936
I was interested in that item you had regarding project selection. We launch fairly well here but didn’t know if you would share it with someone from the old GenCorp roll out days… I tried to email you twice but can’t get my mail system to deliver…maybe I’m mistyping I’s and L’…..
Please reply to me at [email protected] Thank you very much in advance.0January 12, 2005 at 10:19 pm #113410January 12, 2005 at 8:14 pm #113404
Let me throw this out …
I have often used Z distribution to compare a single data point relative to a population with a known standard deviation.
T-tests which are just comparing populations of means–e.g. why the distribution changes depending on the degrees of freedom, sample size. It is true that the t-distribution effectively follows the z distribution for samples sizes of 30.
T-tests are conservative since the tails are longer so to get 95% confidence the required delta between test statistics and “estimated population means” is larger since the area under the tails is higher with t- curves.0November 11, 2004 at 10:43 pm #110647
What was the point of this bitterly sounding story?
What I take out of the story was either 1. management had a very poor rollout or 2. the “reputable” consulting firm delivered a poor strategy and/or training or 3. you did not beat your head against the brick wall until someone saw you had some partial explanation for the failings at the facility you worked.
Blackbelts, MBB, Greenbelts must show some leadership and guts to get the status quo to change. No one has ever said change wasn’t easy. Remember that how the message is delivered can impact whether management is convinced.
I’m worried about how bitter your post sounded and how close of a description of what and where the facility is.0November 2, 2004 at 4:26 pm #110126
stuck with…..is not descriptive of the issue0September 22, 2004 at 8:49 pm #107794
LOL….yes0September 22, 2004 at 8:43 pm #107792
Your name is difficult to type :). I believe 4.5 sigma actually is 3.4 DPMO if one looked up the distribution. That’s why the believers in the shift say you need to have a 6 sigma level (short term capability) such that in the long term you only have 3.4 DPMO–I subscribe to this line of thinking. Sigma level is defined as the capability in the short term so I think it’s important to keep in mind which DPMO, short or long term, is quoted with the sigma level.
Even if you are referring to the 1.5 shifted sigma level, at 3 Sigma, the DPMO would be 66807 not just 60,000–a difference of nearly 10%.0September 8, 2004 at 1:32 am #106967
define DV and PV please….not familiar with that acronym…
Thanks..0August 6, 2004 at 4:22 pm #105157
ok…i can’t get it to download with the macros… what settings do i need to change? it says no signature so macros are disabled…
thanks ahead for the help0August 6, 2004 at 3:15 pm #105148
AMEF? What does that acronym stand for?0August 4, 2004 at 3:59 pm #105004
A couple of thoughts…
1. See if your company offers private counseling. Many offer this as a way to keep up employee productivity and you can use it to see if you have an issue that might take some counseling. Often if your company offers something like CompPsych it allows for 3 free or VERY low cost sessions.
2. If you have the right company environment where employee development exists, consider asking for mentoring or direct, immediate feedback from someone you admire and trust. I’ve had good mentoring in the past and used this technique on some of my weaknesses.
3. Remember that not many good people will worry too much about the past and are concerned about the present. Concentrate on the here and now and be proud of your accomplishments.
4. One other explanation–the company culture may not be what you want. As a mentor of mine said, if you are a great basketball player, you won’t succeed well in a football environment (paraphrasing LOL …).
Good luck…0July 5, 2004 at 3:24 pm #102934
It is my opinion that it has nothing to do with whether or not these organizations have a Six Sigma program. Ford and GM have long been banking on the fact that US consumers are going to only buy American made vehicles. Now that more people are buying “foreign” vehicles (due to reliability and price), Ford and GM are trying to play catch-up. Six Sigma (and Lean) are certainly a means of getting there but the level of maturity of the programs should also be considered.0July 2, 2004 at 12:05 pm #60179July 1, 2004 at 8:25 pm #60177
With a lot size that small, you will have to inspect 100% in order to have any type of confidence in the quality of your shipment.0June 24, 2004 at 12:02 pm #60167
It’s on the web
http://www.quality.nist.gov/Contacts_Profiles.htm0February 9, 2004 at 10:29 pm #95245
I would start with:
Seeing if any survey or other inititive has been under way to find out what your customers want.
Do you have any financial plan gaps that need to be closed?
Is associate attrition OK?
Then drill down with projects.
S0March 27, 2002 at 10:55 pm #73739
Ouh.. I don’t know, may be a spell checker would help?0February 23, 2002 at 12:51 pm #72467
Here’s an opinion. After nearly 20 years as a measurement and control engineer (IEng), and a few months as a trainee blackbelt, I am still struggling with the (apparently) overcomplex approach that SS takes to measurement systems. If the process is not operator dependant, nor subject to the effects of environmental influences, then surely your calibration accuracy (error as percentage of point/full scale + calibration systems uncertainty) sets the standard for your results accuracy. Only if this equipment is capable of generating different results depending on its utilisation would I consider a full R+R study.
Only my opinion – my MBB would probably have more to add!!!0