A process capability index of 2 means that the upper and lower specification limits of the process are six standard deviations above and below the mean respectively. True or False? Eliminating variations is always possible. True or False?

True

Explanation:

The formula to compute the process capability index is shown below:

Cpk = minimum [(Mean - LSL) ÷ 3σ , (USL – Mean) ÷ 3σ]

Now

If Cpk = 2,

so  

(Mean - LSL) ÷ 3σ = 2 or (USL – Mean) ÷ 3σ = 2

Mean – LSL = 6σ or USL – Mean = 6σ

Therefore, if Cpk = 2, the process's USL or LSL is six standard deviations (6σ) up or down mean

Hence, the given statement is true

whole quiz

1. the sum of all activities involved in getting high-quality products into the marketplace

2.operations

3. the principle of looking at the supply chain as a whole in order to improve the overall flow through the system.

4. produced; performed

5. activities producing tangible products, such as radios, newspapers, buses, and textbooks.

6. activities producing intangible and tangible products, such as entertainment, transportation, and education.

7.   customer focus

8. analyzing a competitor's products to identify desirable improvements

9. the systematic direction and control of the processes that transform resources into finished projects that create value for and provide benefits to consumers.

10. operation management.

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