Use the Energy database to forecast the 2010 price of automotive diesel by using simple exponential smoothing of previous automotive diesel data. Let   0.2 and   0.8. Compare the forecast with the actual fi gure. Which of the two models produces the forecast with the least error? 4. Use the International Labour database to develop a regression model to predict the unemployment rate for Germany by the unemployment rate of Italy. Test for autocorrelation and discuss its presence or absence in this regression analysis.