Sunday, July 26, 2009

Water keeps flowing over the banks

I have been resting quite sometime, refraining from updating this blog; I have nothing interesting to write in particular. I am also unable to comment much about the political thingies happening nowadays. However events keep occurring albeit you stops breathing. Now we have Dato Najib as PM after Pak Lah has stepped down. It was like the parody of a sleeping dog awaken by a slap on the face- suddenly realizing 100+ days already elapsed with Najib on the reign. Of course resentments, squabbles etc., crop up here and there but for sure it will level up soon enough.

Just look at a water rising from the bank of a river, after a real heavy downpours; it overflows to the plane with some devastating effect but will soon ebbs to the original level again! Look at what’s has happened in Perak, Selangor, and the Manek Urai’s by election; metaphorically things seem to resolve. More current, MJ has passed away and the bombings of the two hotels in Indonesia and other incidents have numbed my head; The worst part however, it rendered incapable even to open my mouth. So, for sure water keeps flowing while you’re sleeping.
Note: Annonymous image downloaded from the web

Quality Control

Let's do some Lab QC evaluations:

The Levey-Jenning charts show a two level QC results used on a laboratory test

Evaluate the results on the two charts

State the types of error found

What is the critical analytical range affecting the results showed on the charts?



ANS: Both control results exceed their respective +2s limits, therefore there is a 22s rule violation across materials. A systematic error is most likely occurring and is affecting the results throughout the critical analytical range from at least 200 to 250 mg/dL.



Adapted from http://www.westgard.com/




To calculate standard deviation and other math parameters please go to the
following links:

http://www.easycalculation.com/statistics/standard-deviation.phb
http://www.mathsisfun.com/