Power is the probability of detecting a true difference between the two versions, if it exists. Sample size is the number of users you need to assign to each version to achieve a certain power level.

Abstract: The solution of state-based stochastic models is usually a demanding application, then it is a natural subject to high performance techniques. We are particularly interested in the speedup ...

Studies on the iteration procedure in double bootstrap method have given a great impact on confidence interval performance. However, the procedure was claimed to be complicated and demand intensive ...