Skip to main content

Table 3 Regression parameters for unweighted and weighted regression with different weighting factors

From: An approach to select linear regression model in bioanalytical method validation

Sr. No.

Weighting factor

a

b

r 2

% RE

F(exp)

1

1

− 0.00083

0.00048

0.998

294.95

272.95

2

1/x

+ 0.00415

0.00049

0.999

98.70

0.26

3

1/x2

+ 0.00872

0.00046

0.998

101.87

0.00026

4

1/√x

− 0.00074

0.00048

0.997

169.51

8.52

  1. a is the intercept and b is the slope of calibration curve