Table 11 The ML Estimates (standard error in parenthesis) for data set II.

From: Introducing novel arc cosine-\(\Psi\) class of distribution with theory and data evaluation related to coronavirus

Model

\(\hat{\gamma _{1}}\)

\(\hat{\gamma _{2}}\)

\(\hat{\gamma _{3}}\)

\(\hat{\gamma _{4}}\)

NACWD

78.5981

2.1542

–

–

(18.6241 )

(0.1498)

–

–

NATFD

0.0527

1.3217

  

(0.0118)

(0.0797)

 

–

NCWD

21.0763

1.6973

–

–

(4.5470)

(0.1210)

 

–

WD

41.0352

2.2223

–

–

(10.4229)

(0.1595)

–

–

AWD

20.3008

20.7359

2.2223

2.2223

(9.9238)

(7.9243 )

(1.63394)

(1.67009)

KPFD

11.8711

0.0211

5.3176

16.0668

(10.1229)

(0.0102)

(4.2318)

(7.0712)

FD

1.3506

0.1061

–

–

(0.0820)

(0.0079)

 

–

IBD

0.0550

9.4260

–

–

(0.1463)

(25.0469)

–

–

LXD

0.0172

347.7216

–

–

(0.0198)

(399.3022)

 

–

EED

12.7423

4.3338

–

–

(1.1234)

(0.6940)

 

–