#The data set already exists and is relatively easy for you to obtain. #The data is sufficiently rich in information and features to answer the main question you have proposed in your project. #The outcome of your analysis has a realistic impact i.e., it clearly helps your real or hypothetical client make better decisions, or do something differently.
9/26/2017 Update: dataset already tidy- uploading same link to data wrangling section for completion of the chapter 3: Data Wrangling.