Often times data is analyzed and visualized to understand, but not to present the visualization. Visualizations can be excellent analytical tools.
If you would like to generate different data than what was gathered in week 1, you may. However, clearly state that the data is different and the source of the data in the research paper. You do not need a compelling reason, so do not spend time trying to justify your choice. You may use data that is available within the libraries of R, as well.
Determine what cleaning is needed, if any. Using statistical tools provided in the lecture, or tools you ascertained the knowledge of from another source, determine what tools to use and perform at least 2 statistical analyses on your dataset.