QC CALCULATION PROBLEM
SET
James O. Westgard, Ph.D.
March 1998
The answers are listed below.
|
1
|
199
|
202
|
199
|
196
|
199
|
196
|
|
2
|
195
|
200
|
200
|
203
|
196
|
205
|
|
3
|
201
|
194
|
197
|
204
|
207
|
197
|
|
4
|
205
|
204
|
201
|
195
|
194
|
200
|
|
5
|
205
|
203
|
198
|
197
|
199
|
197
|
|
6
|
207
|
195
|
206
|
205
|
188
|
198
|
|
7
|
191
|
202
|
199
|
202
|
200
|
200
|
|
8
|
199
|
202
|
194
|
207
|
205
|
204
|
|
9
|
204
|
206
|
192
|
197
|
203
|
197
|
|
10
|
196
|
198
|
214
|
197
|
194
|
206
|
|
11
|
197
|
200
|
200
|
200
|
207
|
199
|
|
12
|
193
|
189
|
198
|
202
|
195
|
202
|
|
13
|
193
|
202
|
207
|
209
|
208
|
203
|
|
14
|
196
|
205
|
198
|
204
|
192
|
194
|
|
15
|
197
|
198
|
197
|
206
|
201
|
200
|
|
16
|
192
|
194
|
200
|
192
|
196
|
199
|
|
17
|
198
|
201
|
191
|
197
|
200
|
201
|
|
18
|
198
|
205
|
205
|
201
|
202
|
198
|
|
19
|
201
|
196
|
197
|
193
|
211
|
198
|
|
20
|
199
|
200
|
199
|
198
|
200
|
195
|
|
Mean
|
198.30
|
199.80
|
199.60
|
200.25
|
199.85
|
199.45
|
|
SD
|
4.52
|
4.41
|
5.27
|
4.78
|
5.90
|
3.27
|
|
CV
|
2.28%
|
2.21%
|
2.64%
|
2.39%
|
2.95%
|
1.64%
|
|
Cum mean
|
|
199.1
|
199.2
|
199.5
|
199.6
|
199.5
|
|
Cum SD
|
|
4.47
|
4.71
|
4.72
|
4.95
|
4.70
|
|
Cum CV
|
|
2.25%
|
2.37%
|
2.37%
|
2.48%
|
2.35%
|
Copyright © 1998. All rights reserved.
WesTgard® Quality Corporation, 7614 Gray Fox
Trail, Madison WI 53717
Call 608-833-4718 or e-mail westgard@westgard.com
A Message from JOW
QC Lesson of the Month
| QC Application of the Month | Question
of the Month | Multirule
CLIA Requirements | What's
new with WQC | WQC Catalog | Demo
Download
Home | Glossary
| WQC Archives | Links
| Feedback