Page 288 - Lean six sigma demystified
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266 Lean Six Sigma DemystifieD
14.0
T22
UCL2
12.0
10.0
Pull strength y × die height ×2 8.0
6.0
4.0
2.0
0.0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Date/time/period
Figure 8-15 • Hotelling chart.
Days between retained foreign objects
350
300
Days between retained foreign objects 250
200
150
100
79.26
50
19.4444
0
4/3/03 4/28/03 7/5/03 9/4/03 10/2/03 11/1/03 1/30/04 3/11/04 5/25/04 8/4/04 9/8/04 12/7/04 3/3/05 9/13/05 4/26/06 1/6/07 7/31/07
2003-2007
Figure 8-16 • g charts.
