C-Spec, Inc., is attempting to determine whether an existing machine is capable of milling an engine part that has a key specification of 2 + 0.07 inches. After a trial run on this machine, C-Spec has determined that the machine has a sample mean of 2.001 inches with a standard deviation of 0.030 inch. Calculate the Cpk for this machine. (Round your answer to 3 decimal places.) Cpk
C-Spec, Inc., is attempting to determine whether an existing machine is capable of milling an engine part that has a key specification of 2 + 0.07 inches. After a trial run on this machine, C-Spec has determined that the machine has a sample mean of 2.001 inches with a standard deviation of 0.030 inch. Calculate the Cpk for this machine. (Round your answer to 3 decimal places.) Cpk
Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
Section: Chapter Questions
Problem 1PS
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Solution:-
Cpk stands for Process capability index, which measures capability of a process.
Formula to calculate Cpk:
Cpk = minimum of {[(U – mean) / 3σ] , [(mean – L) / 2σ ]}
where,
U stands for upper specification limit
L stands for lower specification limit
σ stands for standard deviation
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