"Table 2 Parameter Estimates for PIERS Data ",,,, Parameter,Weight flows,,Value flows, ,Sample mean,Standard deviation,Sample mean,Standard deviation q1,11.1227,1.1646,3.7854,0.3963 q2,–16.7447,1.7533,–11.1437,1.1668 X 2 ratio,0.7253,0.0000,1.1760,0.0000