- what citibike is and why your question is interesting.

- a description of the data you use and how it is processed. This should include figures (with captions!!) that help visualize and understand the data.

- a description of the methodology (test) chosen, the motivation behind it, a discussion of alternative options that were not adopted.

discussed and considered the recommendations of your "referees"

Perform the appropriate statistical test.

figures show the results.

- The result and its significance, including the weaknesses and strengths of the analysis.

also upload it to your HW7_ repo

test 2 proportions chi sq test for proportions

parametric