Member since: Dec 19th, 2007
Dec 19th 2007 3:28PM this data cannot be even close to trusted until a more detailed description of the NPD survey is revealed. To confirm - or as a statistician we say - "fail to reject" - your null hypothesis, you must be working with a fair sample representation of the population - in this case All Americans. I'm not sure 600 PC owners represent "All Americans" or "U.S. Consumers". In my professional opinion - this survey does not represent the population it claims to be studying.
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