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Consider the economy and voting example from Section 7.1 Fit the linear regression model to the data through 2012; these are available in the folder
Consider the economy and voting example from Section 7.1 Fit the linear regression model to the data through 2012; these are available in the folder ElectionsEconomy. Make a forecast for the incumbent party's share of the two-party vote in a future election where economic growth is 2%.
- (a)Compute the point forecast the standard deviation of the predicted expectation from (9.1), and the standard deviation of the predicted value from (9.2)
- (b)Now compute these using the relevant prediction functions discussed in section 9.2. Check that you get the same values as in (a).
- (c)The formulas used in (a) are for a frequentist approach, meaning no distribution is assumed on the parameters. What are the modeling assumptions used in the functions in (b)?
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