 |
New
Scientist
5 July
2012
|
The
confidence level of 7.4 sigma represents only random error and says nothing
about systematic error, so I would not label it a "certainty." The
importance of this distinction was dramatically demonstrated in the recent faster-than-light neutrino controversy. For this reason, I feel that 7 sigma versus 5 sigma is of
little conceptual difference.
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