Suppose you have wage data on students that have taken econometrics and students that have not. You produce the following model where EC 0N = 1 if the student took econometrics and 0 otherwise. You estimate your model and find the following result: wages=12.66 + 20.31 XECON Which of the following statements is true? 0 a. Students who took econometrics earn $20.31. 0 b. Students who did not take econometrics earn $12.66 less than students who took econometrics. O C. None of these. 0 (:1. Students who did not take econometrics earn $12.66 more than students who took econometrics. 0 e. Students who took econometrics earn $20.31 more than students who did not