Before analysis of gearbox reliability influence to economic effect, it is important to realise basic ideas of reliability theory and to check relation of coefficients quantitative reliability to economic coefficient and efficiency coefficient.
We take into account also product economic coefficients, its outfit by accessories, spare parts etc.
The Facility Parameters layer (Layer 5) implements seven procedures that calculate and determine the following parameters in the surveyed facility: (1) facility coefficient calculates an economic coefficient that assesses the amount of resources allocated on an annual basis for implementing annual maintenance activities (as detailed in the following paragraphs); (2) facility area calculates the total surveyed floor area; (3) Total Annual Maintenance Expenditure (TAME) indicates the sum of actual annual maintenance expenditure spent for the whole facility; (4) required performance indicator shows the required level of performance (as set by the facility manager) for the different buildings and systems on-campus, as measured on a 100-point scale (Shohet et al.
The facility coefficient procedure is an economic coefficient used in computing the Annual Maintenance Expenditure, by adjusting a coefficient for each of the surveyed buildings in the facility, and for the entire facility.
Although collinearity among explanatory variables does not bias OLS or tobit estimates, the state economic coefficient might have reduced the statistical importance of the county economic coefficient.
None of the 16 county economic coefficients was economically significant.
A log likelihood ratio test of the hypothesis that the economic coefficients
in models 2 or 3 are all zero is easily rejected in both cases at the 0.