Table 2.
Summary of the sample’s characteristics.
| Variable | Minimum | Maximum | Mean | Variance statistics | |
|---|---|---|---|---|---|
| Statistics | Standard error | ||||
| X1 | 1 | 7 | 5.32 | 0.058 | 1.191 |
| X2 | 1 | 7 | 5.11 | 0.069 | 1.650 |
| X3 | 1 | 7 | 5.08 | 0.072 | 1.814 |
| X4 | 1 | 7 | 4.98 | 0.074 | 1.925 |
| X5 | 1 | 7 | 5.38 | 0.071 | 1.762 |
| X6 | 1 | 7 | 5.13 | 0.083 | 2.428 |
| M11 | 1 | 7 | 5.19 | 0.078 | 2.157 |
| M12 | 1 | 7 | 5.03 | 0.072 | 1.811 |
| M13 | 1 | 7 | 4.43 | 0.075 | 1.995 |
| M14 | 1 | 7 | 4.30 | 0.072 | 1.845 |
| M21 | 1 | 7 | 4.57 | 0.085 | 2.560 |
| M22 | 1 | 7 | 3.73 | 0.083 | 2.408 |
| M23 | 1 | 7 | 4.52 | 0.079 | 2.199 |
| M24 | 1 | 7 | 4.01 | 0.098 | 3.388 |
| Y1 | 1 | 7 | 4.33 | 0.099 | 3.472 |
| Y2 | 1 | 7 | 3.36 | 0.094 | 3.076 |
| Y3 | 1 | 7 | 4.11 | 0.091 | 2.899 |
| Y4 | 1 | 7 | 3.70 | 0.094 | 3.129 |
| Y5 | 1 | 7 | 5.32 | 0.058 | 1.191 |