The process engineers have designed our drink process with an upper spec or tolerance of 46 ounces and a lower spec or tolerance of 42 ounces. I wonder what our process capability really is? I've been reading about Six Sigma, it would be fantastic if we could add that to our already fantastic slogan regarding this new beverage!" • Calculate the process capability (Cp and Cpk) Cp = (USL – LSL) / (6 x sigma) Where: USL= Upper Specification Limit or Tolerance LSL = Lower Specification limit or Tolerance Cpk is the capability the process is achieving whether or not the mean is centered between the specification limits. Process Capability Formulas:
The process engineers have designed our drink process with an upper spec or tolerance of 46 ounces and a lower spec or tolerance of 42 ounces. I wonder what our process capability really is? I've been reading about Six Sigma, it would be fantastic if we could add that to our already fantastic slogan regarding this new beverage!" • Calculate the process capability (Cp and Cpk) Cp = (USL – LSL) / (6 x sigma) Where: USL= Upper Specification Limit or Tolerance LSL = Lower Specification limit or Tolerance Cpk is the capability the process is achieving whether or not the mean is centered between the specification limits. Process Capability Formulas:
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The process engineers have designed our drink process with an upper spec or tolerance of
46 ounces and a lower spec or tolerance of 42 ounces. I wonder what our process
capability really is? I've been reading about Six Sigma, it would be fantastic if we could add
that to our already fantastic slogan regarding this new beverage!"
• Calculate the process capability (Cp and Cpk)
Cp = (USL – LSL) / (6 x sigma)
Where:
USL= Upper Specification Limit or Tolerance
LSL = Lower Specification limit or Tolerance
Cpk is the capability the process is achieving whether or not the mean is centered between the
specification limits.
Process Capability Formulas:
Transcribed Image Text:X - LSL USL - X
30 est
30 est
USL LSL
Cpk = min
60 est
o
or Sigma Hat or est (Sample sigma) = Rbar / d2
(where Rbar = Average Range and d2 = statistical constant)
Cp
> 1.67
Cpk > 1.67
^
Capable,
Centered
LSL
USL
u
N
Cpk < 1.00
Not Capable,
Centered
USL
LSL
Cp =
LSL
USL
USL
Cpk < 1.00
Capable.
Not Centered
Cp < 1.00
Not Capable,
Not Centered
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