Quality Control of Lead-Acid Battery according to Its Condition Test for UPS Supplier and Manufacturers

Table 3

Regression analysis (excluding outliers).

Variable	Coefficient estimates	Standard deviation	-value	value	Significant	-square
Constant	12.787	0.0450	283.93	<0.0001	1%	0.6072
Time	−0.0062	0.0006	−9.84	<0.0001	5%