Table 8 The run length characteristic (ARL, SDRL (in 2nd row) and MDRL (in 3rd row)) of the proposed Auxiliary HWMA-SR repetitive chart with \(n=15\), \(ARL_0=500\), different values of \(\omega\), and different values of \(\rho\) for different distributions.

From: Efficient signed-rank based EWMA and HWMA repetitive control charts for monitoring process mean with and without auxiliary information

\(\delta\)

\(\rho =0.25\)

\(\rho =0.5\)

\(\rho =0.75\)

\(\omega =0.03\)

\(\omega =0.05\)

\(\omega =0.2\)

\(\omega =0.03\)

\(\omega =0.05\)

\(\omega =0.2\)

\(\omega =0.03\)

\(\omega =0.05\)

\(\omega =0.2\)

Normal (0,1)

0.0

499.3

501.5

502.9

500.2

499.0

499.1

502.2

501.2

501.9

452.4

439.8

387.7

566.2

268.7

578.5

503.7

447.8

581.9

429.5

423

400.5

321.5

441

329

359.5

359.5

330.5

0.1

23.4

29.3

31.9

20.6

24.9

27.2

19.8

21.2

25.7

15.9

20.9

39.1

12.1

21.5

19.5

13.4

13.4

30.3

21

23

8

17

16.5

25.5

15.5

19

10

0.5

1.7

1.9

1.9

1.5

1.9

2

1.3

1.6

2

0.9

1.1

0.9

1.1

1.3

0.8

0.9

0.8

1.3

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1

Laplace (0,\(1/\sqrt{2}\))

0.0

502.4

500.8

501

501.9

499.7

503.4

500.4

499.6

502.4

405.3

331.5

324.3

372.3

399.9

346.8

413.4

322.2

323.3

439.5

499

457.5

481

445.5

496.5

422

415

478.5

0.1

15.3

16.4

19.1

13.8

14.8

18.5

11.7

12.4

17.3

15.1

17.8

17.1

15.2

11.5

25.5

9.5

13.9

12.9

10.5

7

14

6

14

10

8

5.5

16

0.5

1.4

1.5

1.6

1.2

1.4

1.6

1.2

1.3

1.5

0.8

1.1

0.8

0.6

0.8

0.9

0.6

0.6

0.8

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1

LG (0,\(\sqrt{3}/\pi\))

0.0

501.8

504.3

503.2

506.6

499.1

500.7

500.2

499.8

500.5

368.3

418.8

439.2

530.8

402.7

404.9

429.7

291.4

474.6

452

415.5

490

358

434

380.5

441.5

487

254

0.1

17.5

21.3

29.9

16.1

19.4

25.8

13.7

18.1

24.4

16.9

27.7

45.1

21.7

17.9

15.9

15.9

16.3

15.2

15.5

11.5

12.5

5.5

16

21.5

7

12

23.5

0.5

1.5

1.7

1.9

1.4

1.6

1.8

1.3

1.4

1.7

1.1

1.1

0.9

0.9

0.9

1.0

0.9

0.8

0.9

1

1.5

1

1

1

1

1

1

1.5

1

1

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1

Student’s t-Distribution (4)

0.0

505.9

503

499.1

501.8

503.2

502

503.7

503.6

501.3

353.9

324.1

384.2

485.6

359.6

387.8

490.4

503.7

502.3

492.5

479.5

468

369.5

486

459.5

352.2

422.5

456.1

0.1

20.2

21.8

22.5

17.4

20.6

21.1

15.3

19.1

20.2

17.4

20.7

36.0

13.1

17.8

13.3

16.2

20.6

14.2

15

16.5

7.5

14

14

20

8.5

11

14

0.5

1.5

1.6

1.7

1.4

1.5

1.6

1.3

1.4

1.5

1.1

1.2

0.8

0.8

1.1

1.1

0.6

0.8

0.8

1

1

1.5

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1

Student’s t-Distribution (8)

0.0

505.5

500.0

503.7

499.7

498.0

501.9

507.2

502.0

502.8

284.1

310.4

350.8

384.6

413.1

521.1

335.7

162.3

271.5

490.5

456.5

447.5

493.0

401.5

394.0

459.5

425.0

435.0

0.1

21.3

28.2

29

19.1

25.4

26.8

18

23.5

24.9

23.5

30.5

34.4

17.3

21.1

17.3

15.5

21.3

13.5

7.5

22

13.5

14

24

22.5

13

16.5

22

0.5

1.6

1.7

1.8

1.5

1.6

1.7

1.4

1.5

1.6

0.9

1.1

1.1

0.8

1.3

0.9

0.8

0.8

0.9

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1