This free A/B averages difference split test calculator shows if the average of case A or case B is better. Moreover, it shows how sure it is that there is a real difference between the averages of the two cases and it’s not just the work of coincidence. The higher certainty level, the more sureness for you about the fact that the average of one is better than of the other. Everyone needs to measure sureness, certainty, confidence of the results.
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