Table 2 MCSS results for NGEP-Wei distribution with different combination of parameters values.

From: A novel flexible exponent power-X family of distributions with applications to COVID-19 mortality rate in Mexico and Canada

n

Est

Set III:\(\phi = 0.8,\,\alpha = 0.7,\,\delta = 1.2\)

Set IV:\(\phi = 0.7,\,\alpha = 1.8,\,\delta = 0.8\)

AMLEs

MSE

ABs

AMLEs

MSE

ABs

50

\(\phi\)

1.3401419

3.73696921

0.540141877

0.8221352

1.60373271

0.348790717

\(\alpha\)

0.7209277

0.026167164

0.020927651

1.833487

0.11695117

0.043725520

\(\delta\)

1.152840

0.080740908

−0.047160170

0.7954637

0.01193009

0.006672544

100

\(\phi\)

1.0639405

1.98095765

0.263940510

0.6928009

0.86577761

−0.007199094

\(\alpha\)

0.7196219

0.014107102

0.019621861

1.832861

0.08809218

0.032861292

\(\delta\)

1.167813

0.026743453

−0.032186898

0.7911665

0.006896347

−0.008833518

200

\(\phi\)

0.8787327

1.12014754

0.078732678

0.5934661

0.34166207

−0.106533854

\(\alpha\)

0.7299946

0.011426791

0.029994553

1.832323

0.06471138

0.032323185

\(\delta\)

1.174071

0.016923436

−0.025928824

0.7867408

0.002915682

−0.013259159

300

\(\phi\)

0.7855351

0.51353181

−0.040098399

0.5541187

0.19567145

−0.145881268

\(\alpha\)

0.7252219

0.009306032

0.027827067

1.834145

0.05585333

0.034144703

\(\delta\)

1.178937

0.008845356

−0.014837884

0.7932608

0.00169396

−0.006739160

400

\(\phi\)

0.7137202

0.25206101

−0.086279844

0.5901948

0.14774553

−0.109805244

\(\alpha\)

0.7293404

0.008248674

0.029340359

1.821428

0.04697499

0.021427846

\(\delta\)

1.190765

0.004827222

−0.009234729

0.7926479

0.001339951

−0.007352076

500

\(\phi\)

0.7224529

0.19017907

−0.077547090

0.5670105

0.13901290

−0.132989546

\(\alpha\)

0.7219769

0.007216719

0.021976925

1.836642

0.04552487

0.036641898

\(\delta\)

1.189611

0.003973352

−0.010388667

0.7931329

0.001026925

−0.006867102

600

\(\phi\)

0.7220863

0.14494077

−0.077913705

0.5780741

0.12905761

−0.121925861

\(\alpha\)

0.7223801

0.006567211

0.022380082

1.827314

0.04449885

0.027313535

\(\delta\)

1.190422

0.003082486

−0.009577535

0.7908397

0.000945917

−0.009160279

700

\(\phi\)

0.7127174

0.10754679

−0.087282615

0.5945143

0.09703003

−0.105485702

\(\alpha\)

0.7237454

0.006713205

0.023745436

1.821323

0.03990010

0.021323237

\(\delta\)

1.192115

0.002415838

−0.007884738

0.7924756

0.000714308

−0.007524425

800

\(\phi\)

0.7082831

0.09268212

−0.091716874

0.5842262

0.09692024

−0.115773793

\(\alpha\)

0.7230103

0.006303908

0.023010301

1.827301

0.03860714

0.027300792

\(\delta\)

1.191677

0.002180030

−0.008322607

0.7924884

0.000641495

−0.007511647

900

\(\phi\)

0.7246462

0.05970638

−0.075353835

0.6033333

0.09024770

−0.096666676

\(\alpha\)

0.7184143

0.005301582

0.018414289

1.815633

0.03647963

0.015633414

\(\delta\)

1.191563

0.001618962

−0.008437136

0.7930041

0.000597343

−0.006995930

1000

\(\phi\)

0.7312756

0.05373190

−0.068724370

0.6007523

0.08558905

−0.099247718

\(\alpha\)

0.7157047

0.004913919

0.015704749

1.822380

0.03595069

0.022379732

\(\delta\)

1.194376

0.001417435

−0.005623963

0.7931987

0.000548591

−0.006801286