Proportions Calculator

The go-to A/B Test calculator, if you know your KPI conversion rate and sample size, you have everything you need.

Z Score to Confidence Calculator

If you have your standardized z-score, this calculator will help you convert that to a confidence level for either one-sided or two-sided tests.

Sample Size Calculator

Calculate the sample size necessary to reach 95% confidence with your current conversion rate and desired lift.

Basketball Predictor

A predictive algorithm that analyzes multiple years of college basketball team data and predicts winners of future games based on patterns in the data.

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