MaxwellGT2000 said:
Epoch said:
Right. That's exactly what the report says, and not much else. Extrapolate what you can from it. The problem arises when people start assuming that this means that "29% of wii owners play online".
I'm still certain that this data set is biased and unrepresentative of the general public though.
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Again 20,000 people is a fairly large sample... and can represent general public well cause NPD has a diverse selection of people they poll... and in stats if you have a fair representation of the groups you're wanting to poll you can create fairly accurate data... the number of people in the poll was 20k which is a fairly large number for a study... and NPD isn't some amateur group of statisticians.
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Damn, just about to go to bed.
But you're right. Mostly. What you say is true, and if the data holds up to that, then you have a statistically relevant study. The problem here is that this site tracks the sales of video games systems, so we know some variables that this data should be able to come close to matching with, if the study is to be a reasonable representation of the general public.
So a quick look at one point of data they have given us: 50% of online gamers play the Xbox360
20,000 * .25 = 5,000 respondents who game online (from OP and official release)
2,500 (minimum owners of Xbox360 among data set) / 20,000 (total polled) = 12.5 % of their data population owns an X360.
Extrapolate that to whole population of U.S. = 300 Mill * .125 = 37.5 Million. As we know thats much too high. That puts it way outside the possibility of being statistically relevant to the normal population of U.S.
However, Gnizmo pointed out that the study is not intended to be applied to anything but the gaming population, so the point is moot anyways. And the study means even less, sadly.