Microsoft sells over 67 million Xbox 360s, 19 million Kinects

[Alby_da_Wolf]

outlawauron said:

kowenicki said:

outlawauron said:

kowenicki said:

outlawauron said:

kowenicki said:

ethomaz said:
47% of market share??? I guess that NPD just in this year lol

67 million X360 is in line with VGC numbers...

19 million Kinects seems like VGC is undertracking a little Kinect Adventures!.

yeah just "a little" by about 1.5m

Isn't that less than 10%?

So are you saying an error of 10% is acceptable?

So if say the PS3 was undertracked by 6m that would be acceptable?

Dont play with me... this data is obviously end of March data, we had kinect at 16.08m.. with 19.00m shipped thats a pretty serious undertrack.

That's always been the general margin of error. Obviously it's still a lot of units, but in terms of overall accuracy, it's not far off.

I dont think 10% is acceptable when shipment data is released on a quarterly basis allowing for corrections, on top of that we get NPD and media create numbers released regularly as a check and balance.... 5% I can handle... 10% is too much.

Now, I'm not saying corrections don't need to be made, but rather the range isn't bad. I would comfortably with the overall tracking methods as it only needs a few small adjustments to be perfect.

Yes, the point is this, 10% can be an error margin still acceptable for unadjusted weekly data, but both weekly and total adjustments and the fact that if the error is random, not biased and/or systematic, there should be errors both conservative and in excess, at least partially compensting each other, the acceptable error on the total should be much lower. ±5% is the commonly accepted error margin for polls and other statistics made from random samples.
Anyway, outside of USA, and UK, where currently it is enjoying the highest weekly attach rate, Kinect sales aren't very good, so, adding Kinect for Windows too, real sales could be still undertracked by VGC, but by less than the most pessimistic estimates.