O'Reilly logo

Managing and Improving Quality by Amar Sahay

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

APPENDIX C

Table of Control Chart Constants

Constants for X-bar

chart

Constants for R chart

Constants for S chart

Sample Size = n

A2

A3

d2

D3

D4

B3

B4

2

1.880

2.659

1.128

-

3.267

0

3.267

3

1.023

1.954

1.693

-

2.574

0

2.568

4

0.729

1.628

2.059

-

2.282

0

2.266

5

0.577

1.427

2.326

-

2.114

0

2.089

6

0.483

1.287

2.534

-

2.004

0.030

1.970

7

0.419

1.182

2.704

0.076

1.924

0.118

1.882

8

0.373

1.099

2.847

0.136

1.864

0.185

1.815

9

0.337

1.032

2.970

0.184

1.816

0.239

1.761

10

0.308

0.975

3.078

0.223

1.777

0.284

1.716

11

0.285

0.927

3.173

0.256

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required