NPTEL :: Textile Engineering - Quality Control in Textile Industry

Modules / Lectures

Introduction to Quality and Quality Control
Statistical Description of Quality
Statistical Inferences on Quality
Shewhart Control Charts
Process Capability Analysis
Non-Shewhart Control Charts
Acceptance Sampling Techniques
Six Sigma and Its Application to Textiles

M8Q1: How many pieces out of one million garments are found to be defective under six sigma process?
M8Q2: How many defective garments a six sigma process would produce if the process means shifts to 1.5 times the standard deviation off the target?

M8Q1: How many pieces out of one million garments are found to be defective under six sigma process?

ANS: 0.002 out of one million garments are found to be defective under six sigma process.

M8Q2: How many defective garments a six sigma process would produce if the process means shifts to 1.5 times the standard deviation off the target?

ANS: Under this scenario, a six-sigma process would produce about 3.4 ppm defective.

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