After analysis of variance test, coefficient of determination and adjusted coefficient of determination values were estimated as 0.98 and 0.94, respectively.
For informal workers there is no return to cognitive ability, as the Raven test coefficient is not significantly different from zero.
Judged by the lack-of-fit-test, coefficient of determination and the standard errors results from the analysis of variance have shown the model to be adequate.
Subsequently, grouts with 0.5% and 1% fibre volume fraction were subjected to compressive and splitting tensile strength tests, coefficient of permeability tests and wet dry cycles.
This assay has a test coefficient of variation <5% as required by the National Diabetes Data Group.
Correlation between numeric variables was expressed by Spearman correlation coefficient, and the null hypothesis was tested (coefficient = zero).
A second Cox model, fit on the test set (CoxTest), was also significant (Wald test; coefficient = 0.084, p = 1.1E-05 1.1E-05
Accuracy was also calculated by means of negative predictive values, overall misclassification rate, positive likelihood ratio tests (coefficient between sensitivity and 1-specificity) and negative likelihood ratio tests (coefficient between 1-sensitivity and specificity).
We used the Kendall's W test (coefficient of concordance) to assess the degree of agreement on the preferences.
In all analyses, outliers were eliminated on the basis of the Cook's D Influence test (coefficient greater than 0.2).
