A sample of 120 electrical components was tested by operating each component continuously until it failed. The time to the nearest hour at which each component failed was recorded. The results are...

Table 4.7: Times to Failure of Electrical Components, hours

1347

33

1544

1295

1541

14

2813

727

3385

2960

2075

215

346

153

735

1452

2422

1160

2297

594

2242

977

1096

965

315

209

1269

447

1550

317

3391

709

3416

151

2390

644

1585

3066

17

933

1945

844

1829

1279

1027

5

372

869

535

635

932

61

3253

47

4732

120

523

174

2366

323

1296

755

28

305

710

1075

74

1765

1274

180

1104

248

863

1908

2052

1036

359

202

1459

3

916

2344

581

1913

2230

1126

22

1562

219

166

678

1977

167

573

186

804

6

637

316

159

983

1490

877

152

2096

185

53

39

3997

310

1878

1952

5312

4042

4825

639

1989

132

432

1413