Question

A Black Belt consultant in the ABC Corporation reported the Sigma Performance of a manufacturing line as 3.1. Using Z score table calculate the % defective units coming off the production line.

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Answer 1

Solution:

Given that,

the ABC Corporation reported the Sigma Performance of a manufacturing line as 3.1.

To begin with, I will experience Z Table, utilizing the transient six sigma level or

Z =3.1, here, Yield value is 94.5%,

thus, % damaged units falling off the creation line

= 1-0.945

=0.055

=5.5%

Here, I will get ready C graph, as, each task, we will discover a few quantities of blunders during the structure survey process, here explicit undertaking with N number of mistakes can be considered as a faulty venture, we will create Chart for quantities of blunders, henceforth, It would be C or Defect diagram.

we can figure C Bar worth, UCL and LCL values,

As we know the formula,

C Bar= Numbers of Errors altogether/Total Number of Project

UCL=C Bar +(3*Square Root of C Bar)

here, 3 is considered as 3 sigma level procedure quality that we will adjust

LCL =C Bar - (3*Square Root of C Bar)

On the off chance that all the mistakes or deformities are in the middle of UCL and LCL values, at that point, we can reason that procedure is in Statistical Control.