Chapter 10

Question 1

What is a type 2 Error?

Answer 1

Wrongly concluding that a process is in contorl when it actually isn’t

Question 2

Once there is only random variation in the output of the process, the process is considered___________?

Answer 2

Stable

Question 3

Variability of process output that is measuered in standard deviation

Answer 3

Process width

Question 4

Limits of range of acceptable variation in output

Answer 4

Specific width

Question 5

Who said there is cost to any deviation from target specifications?

Answer 5

Genichi Taguchi

Question 6

How to improve process capability? (5)

Answer 6

1. Simplify
2. Standardize
3. Mistake proof
4. Upgrade
5. Automate

Question 7

Process capability 3 improvements…

Answer 7

1. Reduce the need for quality control
2. Lower cost of quality failures
3. Improve customer services

Question 8

Systematic improvement through documentation measure and analysis is….

Answer 8

BPI Business process improvement

Question 9

3 BPI steps…

Answer 9

Map process
Analyze process
Redesign Process

Question 10

What is PDSA

Answer 10

Plan Do Study Act

Question 11

PDSA, what happens with in the plan phase?

Answer 11

Study, document, collect data, analyze, plan, specific measures

Question 12

PDSA what happens in the DO phase?

Answer 12

Begin the plan and make any needed changes

Question 13

PDSA what happens within the study phase?

Answer 13

Evaluate plan and make any more changes

Question 14

PDSA what happens in the ACT phase?

Answer 14

Standardize and communicate the results

Question 15

What is DMAIC

Answer 15

Define, Measure, Analyze, Improve, Control

Question 16

Types of Quality control- Accepted Sampling?

Answer 16

Contorl efforts are limited to before and after the production

Question 17

Types of Quality Control- What is process control?

Answer 17

Expand efforts to include the entire production and delivery process

Question 18

Types of Quality Control- what is continuous improvement?

Answer 18

Quality control is integrated into the production

Question 19

Activity that compares process output to a standard to achieve quality of conformance?

Answer 19

Quality control inspection

Question 20

What are the four questions of the inspection process?

Answer 20

1. Where
2. How much/ often
3. On site?
4. Inspect attributes or variables

Question 21

What are the three areas where you can do inspections?

Answer 21

End of process
Start of process
During process

Question 22

Level of inspection activity at which the costs are at its lowest?

Answer 22

Optimal level

Question 23

When should you use centralized inspection?

Answer 23

When the inspection process requires costly or specialized equipment and persons

Question 24

When should you use on site inspections?

Answer 24

Typically when the inspection needs to be quick

Question 25

Inspection techniques that monitor and control process variation and statistical sampling, on a computer?

Answer 25

SPC Statistical Process Control

Question 26

Type of process variation where the cause can not be identified

Answer 26

Random Variation

Question 27

Type of process variation where cause can be identified

Answer 27

Non Random Variation

Question 28

Theoretical basis for distinguishing between types of variation?

Answer 28

Sampling distribution

Question 29

Most commonly used distribution, aka bell curve?

Answer 29

Normal distribution

Question 30

States that sampling distribution will approach a normal distribution patter as number of samples taken increase?

Answer 30

Central Limit Theory

Question 31

Statistical Process Tools- uses control limits and time ordered series of sample statistics to determine variation form process mean is random or non random?

Answer 31

Control chart

Question 32

What are the 2 SPC Control Charts for Variables?

Answer 32

Mean Control Charts- monitor and control central tendency | Range Control Charts- used to monitor and control dispersion of outputs

Question 33

Chart that monitors PPProportion of defective times in the output?

Answer 33

P CHARTs

Question 34

Type of Chart that monitors number of defects of outputs

Answer 34

C Charts

Question 35

What is a type I Error?

Answer 35

Wrongly concluding that a process is NOT in control when it actually is