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BS ISO 7870-6:2024

$167.15

Control charts – EWMA control charts for the process mean

Published By Publication Date Number of Pages
BSI 2024 34
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Symbols and abbreviated terms
11 5 EWMA for inspection by variables
5.1 General
5.2 Weighted average explained
12 5.3 Control limits for EWMA control chart
13 5.4 Construction of EWMA control chart
15 5.5 Example
18 6 Choice of the control chart
6.1 Shewhart control chart versus EWMA control chart
19 6.2 Average run length
6.3 Choice of parameters for EWMA control chart
6.3.1 Choice of λ
20 6.3.2 Choice of Lz
6.3.3 Calculation for n
21 6.3.4 Example
7 Procedure for implementing the EWMA control chart
22 8 Sensitivity of the EWMA to non-normality
9 Advantages and limitations
9.1 Advantages
9.2 Limitations
24 Annex A (informative) Application of the EWMA control chart
28 Annex B (informative) EWMA control chart for a proportion of nonconforming items
30 Annex C (informative) EWMA control charts for a number of nonconformities
32 Bibliography
BS ISO 7870-6:2024
$167.15