Comments on: Examples of Variation: Customers Feel the Difference

By: Chris Lloyd

Chris Lloyd — Sat, 15 Aug 2015 02:15:40 +0000

In reply to Steve Moore. Yes, it sure looks right skew to me. You would expect a gamma distribution for waiting times. Using the normal will badly under estimate the chance of the customer waiting too long. Pity an otherwise interesting post was ruined by a sloppy example.

By: Pete Abilla

Pete Abilla — Tue, 10 Dec 2013 19:09:40 +0000

In reply to Suzanne.

Hi Suzanne,

I believe the original quote was from Proctor and Gamble’s CEO who said something along the lines of “Customers don’t feel the average, they remember the difference”. I put my little spin on it and used variation instead and omitted the word “remember”.

Thanks for taking the time to read.

Pete

By: Suzanne

Suzanne — Tue, 10 Dec 2013 15:54:03 +0000

I have a question about the sentence “Your customers do not feel the average ” they feel the variation.” I have seen this quote shown as written by Tom Groark and was trying to track down which Tom Groark wrote it so I make sure to have the correct source as I have put it in a Six Sigma presentation. Did you write it or do you know which Tom did? Thank you.

By: Steve Moore

Steve Moore — Tue, 04 May 2010 13:08:12 +0000

“The image above shows a data set that fits a normal distribution” How on earth do you come to THAT conclusion? What is the Anderson-Darling statistic and the associated p value? It is obvious that the data does NOT fit the normal distribution. The data is heavily skewed. Just because the software overlays a normal curve on the histogram does NOT make the data normally distributed.

By: Tom Vander Well

Tom Vander Well — Thu, 04 Jan 2007 12:44:58 +0000

Awesome! Thanks for a great post. You’ve nailed it – and I especially appreciate the way you’ve wrapped it up in your conclusion. It is about the customer. Well done.