Q You are interested in the return of education on wages. To investigate this relationship, you collect a random sample, regress wage on education and find that one additional year of education, on average, leads to Aus10,000 more in salary per yearly. The p-value is 0.001 and the R-squared is 0.9 Excited about this sizeable effect you present your results to your master thesis advisor. He is sceptical and says that the true effect is likely much lower. Which of the reasons below could explain the advisors statement? [5 marks]