| http://www.w3.org/ns/prov#value | - For 20,000 optical test marks the statistical precision is 1.4% (Plus or Minus 0.707%).I repeat: if you feed an ACM 20,000 ballots and it reads them all correctly, all you have proven, at 95% confidence level, is that the ACM has an accuracy rating as high as 100% or as low as 99.3% because the margin of error associated with a random sample of 20,000 is plus or minus 0.707%.
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