Hi. A suggestion to make power analysis easier to use would be remove the need to enter a mean and std deviation for each metric and estimated user per week by using historical data. The user would simply select a metric and select an ‘activation metric’ to represent the population going into the experiment. The analysis would then calculate required inputs using historical data.

Hi Mark Thanks for the feedback. We're working on building these types of improvements into our power calculator, which should be included in our next/future release.