Questions Using these pieces of information, you plan to identify dimensions of the Facebook posts that work well at increasing user engagement: 1. Identify three main proxies in the data that you would like to use to measure user engagement? (5 points) Explain m do you think so? (5 points) What are some other proxies (name at least two) for user engagement that are currently unavailable in the data? (5 points) 2. Identify elements of a status update via multiple linear regressions that seems to boost user engagement. Based on your answer in Q1, please present the snapshot of regression results and explain how you use these results_to reach your conclusion. (hint: for simplicity, no need to log- transform on variables) (20 points) 3. Does the inclusion of video increase or decrease user engagement? (Spoints) 4. Do special offers 8: contents increase or decrease user engagement? (5 points)