KT

In theory perhaps, in reality when you inspect twice AOQL goes DOWN because human nature ASSUMES the other guy will catch it.  (Actually I have overcome this by CAREFULLY designing incentive payments which reward re-inspection at the cost of inspection!)  More effective is employing two inspectors and dividing the area of accountability in half.

I see productivity as the amouont of goods or services completed, typically measured against a time standard.  Where as, effiiciency is the comparison of the current amount produced versus the optimal amount that should/could be produced.  Therefore the two do not always go hand in hand.
Hope this helps.

The North Shore – Long Island Jewish Health System is a 15 hospital system located in New York.  We currently have 18 trained Black Belts, 2 Master Black Belts and over 60 completed Six Sigma projects.

Why don’t you publish a short article on this site to show us how it’s done? I’d love to read more about the process and tool. Thx.

Krish,
Theoritically speaking, it is an excellent problem that you are facing.  Practically speaking, I could imagine the nightmare!  You acutally have a number of solutions paths.  My first suggestion is for you and whomever is helping you with this problem, to sit down and put together a decision tree.  You can start by the two extereme deci…[Read more]

Be careful of nonparametric tests. The have much lower power than the parametric equivalents.
The real question is how small is the sample size? and how non-normal are the data? Even relatively small samples and relatively non-normal data are covered by the Central Limit Theorem.
You can test this by simulating your data in MINITAB or another…[Read more]