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Question $8$

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If a process is neither capable nor in control, the appropriate first step is to:

Question $8$Answer

a$.$

Redesign the equipment

b$.$

Determine the process capability index

c$.$

Remove sources of special cause variation

d$.$

Remove common causes of variation

Question $9$

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If the process mean and variance do not change over time, the process is considered to be:

Question $9$Answer

a$.$

In control

b$.$

Symmetric

c$.$

Stable

d$.$

Capable

Question $10$

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A company that manufactures a product whose specifications are determined to be $50\backslash$pm $20.$ Management uses X$-$bar and R$-$charts to monitor the process using samples of size $4$ for this process. To determine the process capability, Management has calculated means and ranges from eight samples as shown below:

Sample $12345678$

X$-$bar $51\mathrm{.}245\mathrm{.}149\mathrm{.}255\mathrm{.}546\mathrm{.}258\mathrm{.}154\mathrm{.}253\mathrm{.}3$

R $13\mathrm{.}324\mathrm{.}419\mathrm{.}212\mathrm{.}115\mathrm{.}310\mathrm{.}619\mathrm{.}526\mathrm{.}4$

Assuming the X$-$bar and R$-$Charts showed that the process in statistical control,

What is the process capability index? $($Answer to two decimal points$)$ Answer $1$ Question $10$

$2\mathrm{.}58$

What percentage of products would be out of specification? $($Answer to two decimal points$)$ Answer $2$ Question $10$

$99\mathrm{.}49$

$\%$

Question $11$

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Think about the four costs of quality. Indicate how each would change if we hired more inspectors without changing other aspects of quality.

Prevention costs would Answer $1$ Question $11$

increase

Appraisal costs would Answer $2$ Question $11$

decrease

Internal failure costs would Answer $3$ Question $11$

decrease

External failure costs would Answer $4$ Question $11$

decrease

Question $12$

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The Criteria for Performance Excellence for the Malcolm Baldrige National Quality Award should result in all of the following EXCEPT:

Question $12$Answer

a$.$

Delivery of ever$-$improving value to customers, resulting in improved marketplace success

b$.$

Improvement of overall company performance and capabilities

c$.$

Achieving compliance to quality standards set by Capability Maturity Model levels

d$.$

Organizational and personal learning

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Review the quality costs in the list below $($amounts are shown in brackets$).$ Indicate the appropriate cost category for each of these costs by indicating the first letter of the CoQ type next to the cost category $($P $=$ Prevention cost; A $=$ Appraisal cost; I $=$ Internal failure cost; E $=$ External failure cost$).$