In Exercise 35 you identified several countries that had potentially large influence on the model in Chapter 17, Exercise 36 predicting HDI. Set those countries aside and rerun the model. Write up a few sentences on the impact that leaving these countries out has on the regression and give your recommendation on which model you would prefer.
Answer to relevant QuestionsHere is the regression for Exercise 3 with an indicator variable: Dependent variable is: US Gross($M) R-squared = 0.193, Adjusted R-squared: 0.166 s = 37.01 with 62 - 3 = 59 degrees of freedom a) Write out the regression ...Are the following data time series? If not, explain why. a) Quarterly earnings of Microsoft Corp. b) Unemployment in August 2010 by Education level. c) Time spent in training by workers in NewCo. d) Numbers of e- mails ...We are trying to forecast monthly sales for a company that sells ski equipment and clothing. Assume that the company’s sales peak each December and that the monthly sales have been growing at the rate of 1% each month. ...Suppose an autoregressive model is used for data in which quarterly sales in 2013 were: 1.9, 1.7, 2.2, and 2.3 ($ Billion). a) If a first-order autoregressive model is developed with estimated parameters of b0 = 0.100 and b1 ...Use the following model to forecast quarterly sales ($ 000) for a start-up (where time is rescaled to begin at zero and Q2, Q3, and Q4 are dummy variables for the indicated quarters), and answer the following questions. y = ...
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