A/B Testing : How to calculate sample size before launching your test
“How long are we planning to run the test? Do we have a significance yet?”. This is not an unusual situation. In fact all product managers run into this issue.
Metrics: Twyman’s law - Any figure that looks interesting or different is usually wrong
The more unusual or interesting the data, the more likely they are to have been the result of an error of one kind or another
Metrics: ‘Satisficing’ Metric — Not all metrics need to be optimized
Discover the ever so tricky science behind the biggest unsolved challenge of Marketing