Questions Using these pieces of informan'on, you plan to idenn'fy dimensions of the Facehook 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 w_hy 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 e_1cplain 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? [5points} 4. Do special offers 3: contents increase or decrease user engagement? {5 points}