call:
Im(formula = LifeExp ~ Population + Income + Illiteracy + Murder +
HighschoolGrad + Frost + Area, data = StateData)
Residuals:
Min
1Q Median
3Q
Max
-1.48895 -0.51232 -0.02747 0.57002 1.49447
Coefficients:
(Intercept)
Estimate Std. Error t value Pr(>|t|)
7.094e+01 1.748e+00 40.586
<2e-16 ***
Population
5.180e-05
2.919e-05
1.775
0.0832
Income
-2.180e-05
2.444e-04 -0.089
0.9293
Illiteracy
3.382e-02 3.663e-01 0.092
0.9269
Murder
-3.011e-01 4.662e-02 -6.459 8.68e-08 ***
HighschoolGrad 4.893e-02 2.3326-02
2.098 0.0420 *
Frost
-5.735e-03 3.143e-03
-1.825
0.0752
Area
-7.383e-08 1.668e-06
-0.044
0.9649
Signif. codes: 0 '***' 0.001 '**' 0.01 ''0.05 '.' 0.1
Residual standard error: 0.7448 on 42 degrees of freedom
Multiple R-squared: 0.7362, Adjusted R-squared: 0.6922
F-statistic: 16.74 on 7 and 42 DF, p-value: 2.534e-10
h) Which coefficients are statistically significant at the 99% level or higher?
1