Quote:
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Originally Posted by Elk
Quote:
Originally Posted by 1.fresh.f30.335
...BMW average age is much lower than 50...
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BMW owners are just as old as Audi owners, but they have less money and are not as well educated. 
BMW
Average Age of Owner: 49
Median Income: $169,289
4-Year College Degree: 29.07%
Audi
Average Age of Owner: 49
Median Income: $183,601
4-Year College Degree: 31.66%
Source: Business Week
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I'm not sure those are statistically different. What's the p-value?