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Re: Statistical analysis of 1909 VDB RD grades between PCGS and NGC
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Re: Statistical analysis of 1909 VDB RD grades between PCGS and NGC
<< <i>A .184 delta is not statistically significant, given the volume and time frame (so says the math major). >> Paigowjohnny, Given the sample size, over 11,000 coins, I would say the sample size is more than sufficient (so says the engineering/computer science major). The comment about timeframe is, perhaps, a valid…
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