Parameter Estimation for a Class of Lifetime Models

Table 2

Analysis for two-step method.

Statistics	𝑇1	𝑇2	𝑇3	𝑇4	𝑇5
𝑅^2	0.335	0.643	0.671	0.564	0.809
Sig.	0.008	0.000	0.000	0.000	0.000
𝐵𝑖	0.906	0.973	0.955	0.831	0.917
𝐾𝑖	0.003	0.008	0.011	0.01	0.022
Residual sum of squares	0.056	0.098	0.149	0.107	0.231
𝐵=(∑𝐵𝑖)/5=0.916=0.916, 𝐴=193493.655, and 𝐶=6746.318.
The total residuals sum of squares = 0.641.