The specification limits for the inside diameter of a hole are (0.995", 1.005"). The standard deviation of the inside diameters generated by a lathe machine selected to process this component is estimated to be 0.002". Compute the Cp index of this process. Assume that the inside diameters generated by the machine follow normal distribution

Skill/Topic: Statistical Process Control
A) 0.7444
B) 0.8333
C) 0.9673
D) 0.8777
Explanation: Cp = (USL-LCL)/ 6σ = 1.005 - 0.995 / (6 * 0.002 )= 0.8333
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sudhakar2068

  • Dec 16th, 2006
 

specification is 0.8333

sudhakar kolla,

Email ID:kollasudhakar2005@yahoo.co.in.

Ph:+91-9819859346

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