Archive for August, 2009

Type I vs. Type II Errors in Customer Data Management

18th August 2009 by Tim Wilson No Comments

Last week, I ended a post promising a future post on Type I vs. Type II errors when it comes to customer data management. I’ve found myself running into confusion on the distinction, with all customer data errors being treated as the same type, when they are not.
Let’s Start with Definitions
Wikipedia has a nice write-up [...]

Monish Datta Stays on the Vegetarian Wagon (Sort of) at Web Analytics Wednesday

16th August 2009 by Tim Wilson 1 Comment

I’ve officially dropped off the first page of results for a Google search for Monish Datta. Further proof that SEO is an on-going process! Monish made a crack last year that this blog was going to start dominating search results for his name. I took his wisecrack and ran with it! “Dominate” has never really [...]

Rare x Rare x Rare in Customer Data Management

10th August 2009 by Tim Wilson 5 Comments

I once had an operations management professor who asked the class how often we would expect a product to be defective if it was made of 10 components, each of which had a 1% defect rate, if a single component failure would result in the entire product not working.
The math is pretty simple:
99% x 99% [...]