In physics, we use 2-sigma (95%) limits all the time. 5-sigma (99.9999%) is generally required only for a claim of detection. If you're just feeling your way around in the dark, 2-sigma is a useful way to work, so we…
In physics, we use 2-sigma (95%) limits all the time. 5-sigma (99.9999%) is generally required only for a claim of detection. If you're just feeling your way around in the dark, 2-sigma is a useful way to work, so we…