Examp3_4

Examp3_4 - Examples: Chapters 3-4 Examples from the...

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Examples: Chapters 3-4 1 Examples from the Textbook Chapters 3-4
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Examples: Chapters 3-4 2 Chapter 3 Example 3.1: Determinants of College GPA use GPA1 summ ACT Variable | Obs Mean Std. Dev. Min Max ---------+----------------------------------------------------- ACT | 141 24.15603 2.844252 16 33 reg colGPA hsGPA ACT Source | SS df MS Number of obs = 141 ---------+------------------------------ F( 2, 138) = 14.78 Model | 3.42365506 2 1.71182753 Prob > F = 0.0000 Residual | 15.9824444 138 .115814814 R-squared = 0.1764 ---------+------------------------------ Adj R-squared = 0.1645 Total | 19.4060994 140 .138614996 Root MSE = .34032 ------------------------------------------------------------------------------ colGPA | Coef. Std. Err. t P>|t| [95% Conf. Interval] ---------+-------------------------------------------------------------------- hsGPA | .4534559 .0958129 4.733 0.000 .2640047 .6429071 ACT | .009426 .0107772 0.875 0.383 -.0118838 .0307358 _cons | 1.286328 .3408221 3.774 0.000 .612419 1.960237 ------------------------------------------------------------------------------ reg colGPA ACT Source | SS df MS Number of obs = 141 ---------+------------------------------ F( 1, 139) = 6.21 Model | .829558811 1 .829558811 Prob > F = 0.0139 Residual | 18.5765406 139 .133644177 R-squared = 0.0427 ---------+------------------------------ Adj R-squared = 0.0359 Total | 19.4060994 140 .138614996 Root MSE = .36557 ------------------------------------------------------------------------------ colGPA | Coef. Std. Err. t P>|t| [95% Conf. Interval] ---------+-------------------------------------------------------------------- ACT | .027064 .0108628 2.491 0.014 .0055862 .0485417 _cons | 2.402979 .2642027 9.095 0.000 1.880604 2.925355 ------------------------------------------------------------------------------ Example 3.2: Hourly Wage Equation use WAGE1 reg lwage educ exper tenure Source | SS df MS Number of obs = 526 ---------+------------------------------ F( 3, 522) = 80.39 Model | 46.8741805 3 15.6247268 Prob > F = 0.0000 Residual | 101.455581 522 .194359351 R-squared = 0.3160 ---------+------------------------------ Adj R-squared = 0.3121 Total | 148.329762 525 .28253288 Root MSE = .44086 ------------------------------------------------------------------------------ lwage | Coef. Std. Err. t P>|t| [95% Conf. Interval] ---------+-------------------------------------------------------------------- educ | .092029 .0073299 12.555 0.000 .0776292 .1064288 exper | .0041211 .0017233 2.391 0.017 .0007357 .0075065 tenure | .0220672 .0030936 7.133 0.000 .0159897 .0281448 _cons | .2843595 .1041904 2.729 0.007 .0796755 .4890435 ------------------------------------------------------------------------------
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Examples: Chapters 3-4 3 Example 3.3: Participation in 401(K) Pension Plan use 401K summ prate mrate age Variable | Obs Mean Std. Dev. Min Max -------------+----------------------------------------------------- prate | 1534 87.36291 16.71654 3 100 mrate | 1534 .7315124
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This note was uploaded on 08/09/2009 for the course ECON 120B taught by Professor Jeon during the Spring '08 term at UCSD.

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Examp3_4 - Examples: Chapters 3-4 Examples from the...

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