Table 1.

Statistical evaluation of the fit of the SHPM to Ser+ and SFS LDTAs

Source of LDTAsSHPMR-SHPMLR Value*P2)SHPM Hypothesis
LSHPMln (f)LR-SHPMασ
Ser+−11.336−8.85−9.935−8.941.082.8020.047rejected
SFS−7.565−8.06−7.252−8.220.780.630.214accepted
  • *The null hypothesis, σ = 0, is evaluated by a likelihood ratio test statistic defined as LR = −2(LSHPMLR-SHPM).

  • P2) is equal to one-half times the corresponding standard P2) distribution with 1 degree of freedom (5).

  • Maximum log-likelihood value of the fitted SHPM or R-SHPM.