Power

The power analysis notebook. Expanded notebook text is on [google docs](https://docs.google.com/document/d/1CQPlAue1mVFOd811cKGuy4fibFs5abR-wTjaeW6Wu0I/edit?usp=sharing).
This will be very expensive for the list lookups, particularly as this is a nested forloop. Strongly suggest caching or doing a O(1) lookup unless there are no performance concerns.