The Official Dec 2009 NPD Thread (Data for 5 weeks ending Jan 2 in 5 hrs)

[Steroid]

Kasz216 said:

Carl2291 said:

Kasz216 said:

Noobie said:
Why everyone is trying to say XBOX and PS3 is a statistical tie.??? i mean 50k is not that much meager either.. its 1.5 million dollar sales for PS3. :$ and we can also say maybe PS3 had 100k lead and NPD is showing it less.. it should be taken as +/-25k for each console instead of only +25k for XBOX and -25k for PS3 to make it a tie. :$..

i think XBOX has even won by 900 units.. it was something like 287.1k and 288k.. So it was a win for XBOX so this is a win for PS3

No... that would also be a statistical tie.  They would both be statistical ties.

Winning is winning.

Or is there a rule now on how many sales it takes for it to automatically be a "statistical tie"?

Yes.  There is a rule on that.

It's called the margin of error.

It's a statistical rule... for statistics.  Which these numbers are.

It's universal...

For it to not automatically be a statistical tie the two numbers have to be far enough apart from each other to not be within each others "margins of error."