Feedback on structure of labs

[spestana]

Feedback from students on the structure of labs:

They like labs that step through computations manually, and then only after accomplishing those computations manually we introduce the relevant python numpy/scipy/statsmodels functions that perform those same computations.

This guides them through the process of seeing the inner-workings of the functions first, then allows them to determine if the function they're using is doing the same thing, and experiment with options/parameters in the function to fine tune it to do what they need.