Table 4 Result of the specification test (t-stat for standard deviation)
Coef. | SE | z-score | P > z | 95 % confidence interval | ||
|---|---|---|---|---|---|---|
Mean | ||||||
Salary | 0.52 | 0.09 | 5.62 | 0.00 | 0.34 | 0.70 |
Children’s education | 0.46 | 0.10 | 4.64 | 0.00 | 0.27 | 0.66 |
Equipment | 0.50 | 0.09 | 5.37 | 0.00 | 0.32 | 0.69 |
Management | 0.66 | 0.09 | 7.18 | 0.00 | 0.48 | 0.84 |
Study leave | 2.02 | 0.19 | 10.88 | 0.00 | 1.65 | 2.38 |
Housing | 0.68 | 0.09 | 7.20 | 0.00 | 0.50 | 0.87 |
Transportation | 0.28 | 0.09 | 3.31 | 0.00 | 0.12 | 0.45 |
SD | ||||||
Salary | 0.34 | 0.18 | 1.82 | 0.07 | −0.03 | 0.70 |
Children’s education | 0.63 | 0.15 | 4.34 | 0.00 | 0.35 | 0.92 |
Equipment | 0.42 | 0.17 | 2.44 | 0.02 | 0.08 | 0.77 |
Management | −0.20 | 0.24 | −0.83 | 0.41 | −0.67 | 0.27 |
Study leave | 1.44 | 0.17 | 8.50 | 0.00 | 1.11 | 1.78 |
Housing | 0.15 | 0.23 | 0.65 | 0.52 | −0.29 | 0.59 |
Transportation | 0.08 | 0.15 | 0.54 | 0.59 | −0.21 | 0.37 |
Log-likelihood | −748.33 | |||||
Prob > chi2 | 0.00 | |||||