In a study, you are interested in how the number of visits in a month that someone makes to People's Bread Cafes (Halk Ekmek Kafe) relates to his/her wage in Ankara. You collect data both on the number of visits (visits) and on the wages (wage) for your sample of 100 individuals who are in labor force. Suppose that estimating the regression yields the following results visits = 4.12 2.64 lnwage (0.4) (i) Interpret the slope estimate in the model. Is the negative slope estimate consistent with your intuition? (ii) Find the predicted change in the number of visits due to 50% increase in the wage of an individual. (iii) Indeed, how many times a wage earner visits People's Bread Cafes is affected by the proximity of their house to these cafes. However, proximity is not included in the model, and thus, it is among unobserved variables. Suppose that these cafes are located in districts where mostly low-wage families live. By taking this information into account, discuss whether the OLS estimator of the slope parameter above can be unbiased.