From: A useful extension of the Burr III distribution
Model
Hypotheses
Statistic LR
p-value
GBIII vs BIII
H 0:a=1 vs H 1:H 0 is false
10.79832
0.0010159
GBIII vs LL
H 0:c=β=1 vs H 1:H 0 is false
189.9402
0.0000000
GBIII vs ELL
H 0:c=α=1 vs H 1:H 0 is false
587.5724