G01EC_A1W_F Example Program Results Left tail significance levels and derivatives x df p dp/dx dp/ddf 8.2600E+00 9.9969E-03 2.0000E+01 7.7468E-03 -4.8985E-03 6.2000E+00 4.2793E-01 7.5000E+00 1.1434E-01 -1.0850E-01 5.5760E+01 8.6943E-01 4.5000E+01 1.9389E-02 -2.1701E-02