Display MoreSince I didn't know what 5 sigma means in this context, I googled around a bit and found this article:
https://blogs.scientificameric…ons/five-sigmawhats-that/
So if we apply this to the E-cat, we are talking about a 1 in 3.5 million chance that the Rossi effect is not real given the result obtained with the QuarkX. Not a 1 in 3.5 million chance that the QuarkX works.
Rossi addresses sigma 5 in terms of redundancy of equipment, so the terms that Rossi has in mind is equipment reliability.