The go-to A/B Test calculator, if you know your KPI conversion rate and sample size, you have everything you need.
Using your standardized z-score, you can use this calculator to convert that score to a confidence level for either one-sided or two-sided A/B tests.
Calculate the sample size necessary to reach 95% confidence with your current conversion rate and desired lift.
Determine if the applied recipe influences conversion by measuring the distance of the actual counts from those that would be expected if they were not related.
