As an experienced data scientist with strong expertise in Python and R, I am confident that I possess the skills necessary to successfully complete both Part 1 and Part 3 of your project. My proficiency in these languages will allow me to provide not only accurate, but also efficient, deliverables in accordance with the requirements for each part. Having worked extensively on Machine Learning and Data Analysis throughout my career, I assure you that I can skillfully tackle the multiple subparts of Part 1 in R as well as execute Part 3 flawlessly in Python.
Moreover, my ability to effectively use both Python and R for various data analysis techniques, including Predictive Modeling, Data Visualization and Statistical Analysis, aligns strongly with the needs highlighted in your project description. By combining these skills with my natural acumen for Artificial Intelligence, Deep Learning and Data Cleaning, I am confident that I can breathe life into your Excel dataset providing you with valuable insights.