Auron on 27 February 2008
| bigjon said: ok, I'm back. you do realize it is very possible to get within 5% with a 1% sample if you take they sample from unbiased representive sources. I will give you an example- When I was in college for a statistics project I got the data of types of cars people owned on my campus(ford, honda, etc) and my sample was VERY small compared to the total population(like .0000001%). But do you what I found? My sample was with 10% of that of the national statistics based hard retailer sales. 10% is huge is VGC really had that much. And yes NDP is probably perfect for their 60%, but the problem is that Walmart makes up for the rest. And since they are making an estimate to what walmart is selling but have no data they are making and nothing more than an educated guess. They are making this "guess" based on historical data, which I pointed out would be irrelevant in the changing marketplace. I believe walmart Walmart is throwing off their numbers by ALOT. I am not gonna pull numbers out of my rear, but I am gonna guess where you see NDP high and VGC low(and Vice Versa) you can bet that it would be somewhere in the middle. |
Can you please point me to where you got the business practices information about NPD? I would like to see how they actually do gather their data and not take your word for it.
