Figure 3. Effect Diagram of Model Curve Fitting
As shown in Table 9 and Figure 3,The correlation analysis results of the rank sum ratio and the probability unit Probit show that, from the analysis of the results of the F test, the rank sum ratio and the probability unit Probit are highly positively correlated (R=0.990, P<0.001). The original hypothesis that the regression coefficient is 0 is rejected, and the goodness of fit of the model R² is 0.957, the model performance is excellent, so the model basically meets the requirements, and the model is well constructed. The formula of the model is y=-0.148+0.097 * Probit, and the equation is statistically significant.
Table 10. Table of Graded Sorting Critical Values.