Binary options trading and heikin ashi strategy
At least, thats what I take from the other website. I would like to use it, but I want to make sure it is accurate. If you visualize conversion rate ranges as a normal curves, then the overlap in 95 range constitutes a tiny area and thats why the resultant z-value becomes significant at 95 confidence level. If you define it as checking if variation is better than control (pvariation-pcontrol. It depends on how you are interpreting the result but I am glad you clarified.