Can you describe a project or analysis you conducted in the past? What was the objective, and how did you approach it? How do you handle large datasets and ensure data quality and accuracy? Can you explain the steps you take to analyze and interpret data to derive meaningful insights and make recommendations? Have you used any data visualization tools or programming languages for data analysis? Which ones and how proficient are you in using them? Describe a situation where you encountered a problem during your data analysis process. How did you identify the issue, and what steps did you take to resolve it?