Please answer all the questions, and thank you in advance! I posted this already and people only answered the first question. For question 4, it is better phrased to ask "what is the economic interpretation of the coefficient, using Apple as the example"

OLS Mechanics 1. Prove that, on average, the regression residuals are zero. 2. Describe the difference in interpretation, if there is any, between the population pa- rameters (Bo and B1) and estimated coefficients (o and i). 3. Describe what information and p can reveal. What information do they both share? And what distinct information do they provide? 4. What is the economic interpretation of the coefficient o in the example of Apple in the notes for the Stats boot camp II? OLS Mechanics 1. Prove that, on average, the regression residuals are zero. 2. Describe the difference in interpretation, if there is any, between the population pa- rameters (Bo and B1) and estimated coefficients (o and i). 3. Describe what information and p can reveal. What information do they both share? And what distinct information do they provide? 4. What is the economic interpretation of the coefficient o in the example of Apple in the notes for the Stats boot camp