Question

Among the guiding principles of six sigma are: (I) Reduction of variation is an important goal. (II) Valid measurement is critical. (III) Outputs determine inputs. (IV) We should focus on those critical few influences on our quality.

Answer 1

I, II, and IV only

Step-by-step explanation:

Six sigma is a set of guiding principles that is aimed at process improvement. It expects that in production 99.99966% percent of products manufactured is free from defects.

Six sigma seeks to improve processes by identifying causes of defects and reducing impact variability in the production process.

Six sigma principles include:

(I) Reduction of variation is an important goal.

(II) Valid measurement is critical.

(IV) We should focus on those critical few influences on our quality.

Answer 2

I, II and IV

Step-by-step explanation:

Six sigma was developed by Motorola and Bill Smith in 1980.

It uses statistical and systematic approach in quality improvement. It is used to reduce products or service defects. When defects are reduced, more products will be produced and the profit of the business will rise. With less variation a customers needs can be provided.