Question: Model 2: OLS, using observations 1-654 Dependent variable: fev coefficient std. error t-ratio p-value -------------------------------------------------------- const 4.45697 0.222839 20.00 1.07e-69 *** smoke 0.0872464 0.0592535 1.472

Model 2: OLS, using observations 1-654 Dependent variable: fev coefficient std. error t-ratio p-value -------------------------------------------------------- const 4.45697 0.222839 20.00 1.07e-69 *** smoke 0.0872464 0.0592535 1.472 0.1414 age 0.0655093 0.00948855 6.904 1.21e-11 *** ht 0.104199 0.00475772 21.90 4.98e-80 *** sex 0.157103 0.0332071 4.731 2.74e-06 *** Mean dependent var 2.636780 S.D. dependent var 0.867059 Sum squared resid 110.2796 S.E. of regression 0.412216 R-squared 0.775361 Adjusted R-squared 0.773977 F(4, 649) 560.0212 P-value(F) 9.1e-209 Log-likelihood 345.8968 Akaike criterion 701.7935 Schwarz criterion 724.2091 Hannan-Quinn 710.4855 Excluding the constant, p-value was highest for variable 3 (smoke)

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