Using the data file Housing Starts, estimate autoregressive models of orders 1 through 4. Use the method of this section to test the hypothesis that the order of the autoregression is p – 1 against the alternative that the order is p, with a significance level of 10%. Select one of these models, and calculate forecasts of housing starts for the next 5 years. Draw a time plot showing the original observations together with the forecasts. Would different forecasts result if a significance level of 5% was used for the tests of autoregressive order?
Answer to relevant QuestionsFrom the data file Earnings per Share on corporate earnings per share, fit autoregressive models of orders 1 through 4. Use the procedure of this section to test the hypothesis that the order of the autoregression is p - 1 ...Refer to the data file Hourly Earnings, showing earnings over 24 months. Denote the observations xt (t = 1, 2, .., 24). Now, form the series of first differences: zt = xt – xt-1 (t = 2, 3, c, 24) Fit autoregressive models ...Using the data in the file Macro2010, develop and autoregressive model for the prime interest rate. First, use the data for the period 1980, first quarter, through 2000, fourth quarter, to forecast for the quarters in years ...The data file Acme LLC Earnings per Share shows earnings per share of a corporation over a period of 7 years. a. Draw a time plot of these data. Does your graph suggest the presence of a strong seasonal component in this ...A market-research organization wants to estimate the mean amounts of time in a week that television sets are in use in households in a city that contains 65 precincts. A simple random sample of 10 precincts was selected, and ...
Post your question