Page 262 - Lean six sigma demystified

240 Lean Six Sigma DemystifieD

Average
LSL USL
Z
T
A
R
G
E
T
Target
Cr = 0.75

Z Target = |Average – Target|
σ

Obs 1 - Obs 5
LSL 200 USL 346
35
Mean 264.46
Median 265
Mode 265
n –100 Cp 0.76
30
Cpk 0.67
CpU 0.85
CpL 0.67
25 Cpm 0.74
Cr 1.31
ZTarget/∆Z 0.27
Pp 0.76
0.67
Ppk
Number 20 PpU 0.85
0.67
PpL
Skewness
–0.16
15 Stdev 31.84698898
Min 176
Max 346
Z Bench 1.93
10 % Defects 3.0%
PPM 30000.00
Expected 27102.62
Sigma
3.38
5
0
158.95 175.95 192.95 209.95 226.95 243.95 260.95 277.95 294.95 311.95 328.95 345.95 362.95 379.95
Values
FIgure 7-8 • Cr and Z Target.