Refer to Problem 11.2. What are the standard errors of the regression coefficients for the model developed
Question:
Refer to Problem 11.2. What are the standard errors of the regression coefficients for the model developed from the estimation data? How do they compare with the standard errors for the model in Problem 3.5 developed using all the data?
Data From Problem 11.2
Split the National Football League data used in Problem 3.1 into estimation and prediction data sets. Evaluate the statistical properties of these two data sets. Develop a model from the estimation data and evaluate its performance on the prediction data. Discuss the predictive performance of this model.
Data From Problem 3.1
Consider the National Football League data in Table B.1.
Team y X_ X2 X4 X5 X6 X7 8 Xg Washington 10 2113 1985 38.9 64.7 +4 868 59.7 2205 1917 Minnesota 11 2003 2855 38.8 61.3 +3 615 55.0 2096 1575 New 11 2957 1737 40.1 60.0 +14 914 65.6 1847 2175 England Oakland 13 2285 2905 41.6 45.3 -4 957 61.4 1903 2476 Pittsburgh 10 2971 1666 39.2 53.8 +15 836 66.1 1457 1866 Baltimore 11 2309 2927 39.7 74.1 +8 786 61.0 1848 2339 Los Angeles 10 2528 2341 38.1 65.4 +12 754 66.1 1564 2092 Dallas 11 2147 2737 37.0 78.3 -1 761 58.0 1821 1909 Atlanta 4 1689 1414 42.1 47.6 -3 Buffalo 2 2566 1838 42.3 54.2 -1 Chicago 7 2363 1480 373 48.0 +19 714 57.0 2577 2001 797 58.9 2476 2254 984 67.5 1984 2217 Cincinnati 10 2109 2191 39.5 51.9 +6 700 57.2 1917 1758 Cleveland 9 2295 2229 37.4 53.6 -5 1037 58.8 1761 2032 Denver 9 1932 2204 35.1 71.4 +3 986 58.6 1709 2025 Detroit 6 2213 2140 38.8 58.3 +6 819 59.2 1901 1686 Green Bay 5 1722 1730 36.6 52.6 -19 791 54.4 2288 1835 Houston 5 1498 2072 35.3 59.3 -5 776 49.6 2072 1914 Kansas City 5 1873 2929 41.1 55.3 +10 789 54.3 2861 2496 Miami 6 2118 2268 38.2 69.6 +6 582 58.7 2411 2670 New 4 1775 1983 39.3 78.3 +7 901 51.7 2289 2202 Orleans New York 3 1904 1792 39.7 38.1 Giants New York 3 1929 1606 39.7 68.8 Jets Philadelphia St. Louis 4 2080 1492 35.5 68.8 10 2301 2835 35.3 74.1 San Diego 6 2040 San 8 2447 2416 38.7 50.0 1638 39.9 57.1 Francisco Seattle Tampa Bay 20 2 1416 2649 37.4 56.3 1503 1503 39.3 47.0 -21 734 61.9 2203 627 52.7 2592 2324 1988 722 57.8 2053 2550 +2 683 59.7 1979 2110 848 576 54.9 65.3 2048 2628 1786 1776 -22 875 684 43.8 53.5 2876 2560 2241 2524
Step by Step Answer:
Introduction To Linear Regression Analysis
ISBN: 9781119578727
6th Edition
Authors: Douglas C. Montgomery, Elizabeth A. Peck, G. Geoffrey Vining
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