How did you employ both qualitative and quantitative data in the case studies, and what criteria guided your selection of each type of data? Specifically, elaborate on the process of using qualitative data to find relevant information and extrapolate conclusions, and the use of quantitative data for analyzing factual evidence and numerical aspects. Provide insights into your approach to verifying claims through scientific evidence and the sources you considered acceptable, including your opinion on the inclusion of information from both the case study book and internet research. Finally, discuss your perspective on the user's responsibility in interpreting data correctly when scientific evidence is presented to support a claim.