Table 2. Regression Coefficient of BBD Models^a.

UAE			MAE
regression coefficients	TPC	TFC	regression coefficients	TPC	TFC
A0	38.27*	25.76*	A0	15.66*	9.35*
A1	–0.05	–0.59	A1	–0.54*	–0.001
A2	0.26	–0.24	A2	2.37*	–0.42*
A3	5.96*	1.93*	A3	0.30*	0.09*
A4	0.19	0.11	A12	–0.11	–0.11*
A12	0.90	0.29	A13	–0.19	0.08
A13	–5.96*	–3.31*	A23	–0.82*	–0.28*
A14	–1.00	–0.29	A11	2.38*	–2.73*
A23	3.37*	3.61*	A22	1.11*	–2.52*
A24	–0.12	–0.15	A33	–1.48*	–2.60*
A34	0.30	–0.10	F values	87	1362
A11	–3.76*	–8.94*	R2	0.991	0.999
A22	–10.19*	–7.14*	adjusted R2	0.980	0.999
A33	–10.14*	–6.96*	predicted R2	0.858	0.991
A44	–11.17*	–8.35*
F values	26	23
R2	0.963	0.958
adjusted R2	0.926	0.917
predicted R2	0.786	0.760

^a* indicates statistically significant differences (p < 0.05).