Lots of knit picking here. In plain English, confidence intervals are about your results being bogus. You flipped 100 coins, all of them came up heads, you conc

Lots of knit picking here. In plain English, confidence intervals are about your results being bogus. You flipped 100 coins, all of them came up heads, you conclude 100% of coin tosses come up heads. By chance, you got a very unlikely sample that differed substantially from the population. You could also conclude your A/B test is a success, when it was just randomly atypical.