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biased in purchase and sample size
Posted by Aero'ed (more from Aero'ed) on Tue, 14 Oct 2003 15:51:13
In Reply to: Suspect source for info, Atul, Tue, 14 Oct 2003 15:00:18
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"This is a flawed sample because they are biased to buy what CR recommended in the first place"
Assuming that they are truthfull in their survey, it shouldn't matter what motivated them to buy that car/dryer/radio/etc in the first place. If we follow your argument, it could effect the sample size, but not the survey data collected.
"and they often have insufficient samples for certain vehicles that sell well in the marketplace."
They will indicate in their reliability ratings which vehicles they don't have sufficient data for. I don't know their criteria for sufficient data, but I expect it to follow accepted statistical methods.
Ed
2002 Aero SW
posted by 66.84.139...
Posts in this Thread:
- But seriously, what about reliability?, John Murray, Mon, 13 Oct 2003 21:29:02
- Resale value......, Mike Lynch , Tue, 14 Oct 2003 15:28:37
- Check Consumer Reports, JimW, Tue, 14 Oct 2003 08:36:55
- Re: But seriously, what about reliability?, Owen, Tue, 14 Oct 2003 06:27:16
- Re: But seriously, what about reliability?, compaqted, Tue, 14 Oct 2003 03:08:37
- Re: But seriously, what about reliability?, irfan, Mon, 13 Oct 2003 22:55:36
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