Sample size calculator

Decide how willing you are to trade off sensitivity of your test versus how long you might need to run your test for. The smaller the MDE, the more sensitive you are asking your test to be, and the larger sample size you will need.

Keep in mind that statistical significance in Intelligence Cloud’s stats engine shows you the chance that your results will ever be significant, while the experiment is running. If the effect that our Stats Engine observes is larger than the minimum detectable effect you are looking for, your test may declare a winner or loser up to twice as fast as if you had to wait for your pre-set sample size. Given more time, stats engine may also find a smaller MDE than the one you expect. Learn more