Table 8.

Table of descriptive variables

VariablesStatisticSkewnessKurtosis
Rangeminimummaximummeanstd deviationVarianceStatisticStd errorStatisticStd error
Lu9911009.3423.41547.873.250.1419.420.28
Nj170.0171.723.4611.972.670.1426.800.28
RQD92.57.510094.6813.25175.68−3.390.14112.620.28