1. A study published in Nature in 1993 (Rauscher, Shaw, and Ky, 1993) suggested that listening to Mozart for 10 to 15 minutes could temporarily raise your IQ by 8 or 9 points. That study made big news and politicians and parents saw an easy way to make their children smarter. For a while, the state of Georgia in U.S. even distributed classical music CDs to all infants in the state. (a) Write down the OLS model exploring the relationship between IQ and listening to Mozart. (5 points) (b) Critically discuss this model and the findings in light of the Gauss- Markov Assumptions. (20 points)