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3. Consider the dataset "7Carbon footprint" (source: https://de.statista.com) containing the cli- mate footprint for food from conventional and organic farming in retail purchasing (CO2 equiv- alents in grams per kilogram of product). Summer term 2022 Methodology 2: Statistics a) Visualize the data both for conventional and organic farming separately. What do you observe? b) Now visualize the data simultaneously in a suitable way. Can you already detect (signifi- cant differences between conventional and organic food? c) Does the data support the fact that consuming organic food comes with a significantly smaller carbon footprint than consuming food from conventional farming? Conduct a suit- able statistical test in oder to answer this question. Don't forget to formulate null and alternative, determine a significance level and interpret the result! d) Given the data, what other questions could be interesting?