Chapters 1-3

Question 1

SPC

Answer 1

Statistical Process Control

Question 2

Things you expect to happen

Answer 2

Common Cause Variation

Question 3

SQC

Answer 3

Statistical Quality Control

Question 4

TQM

Answer 4

Total Quality Management

Question 5

5 Key Quality Concepts

Answer 5

Management Commitment, Management Systems, Statistics, Teams, Training

Question 6

Two ways to measure spread

Answer 6

Range and Standard Deviation

Question 7

3 ways to measure central tendency

Answer 7

Mean, Median, Mode

Question 8

Most common ways of measuring variation

Answer 8

Mean and Standard Deviation

Question 9

Distribution with common cause or stable process

Answer 9

Normal Distribution

Question 10

LSL

Answer 10

Lower Specification Limit

Question 11

USL

Answer 11

Upper Specification Limit

Question 12

Cm

Answer 12

Measurement Capability Index

Question 13

Cp

Answer 13

Process Potential Index

Question 14

Cpk

Answer 14

Process Capability Index

Question 15

Ppk

Answer 15

Process Performance Index

Question 16

What sigma is the national average?

Answer 16

4 sigma or Cp of 1.33

Question 17

If process calculated Cpk of 0.33, what can I say about the ability of my process to meet my customer’s expectations?

a) it will be OK
b) It would be difficult to meet
c) It will meet them most of the time
d) I can’t say one way or another

Answer 17

b) it would be difficult to meet

Question 18

What is Greek letter for sum?

Answer 18

Σ

Question 19

The term Cpk is used to help a manufacturer determine if their process:

a) will allow their products to be sold
b) will allow their products to meet a customer’s specifications
c) will meet with cost projection for each quarter of the year
d) none of the above

Answer 19

b) will allow their products to meet a customer’s specifications

Question 20

If you drive to work everyday, which of the following variables below would be considered common cause?
a) traffic b) flat tire c) traffic lights d) all of the above e) A & C

Answer 20

e) A & C

Question 21

Most used central tendency

Answer 21

Mean

Question 22

If you have a completely normal distribution, which of the percentages below represent ±2σ?
a) 50% b) 95% c) 33% d) 99%

Answer 22

b) 95%

Question 23

The term central tendency refers to:

a) the name of a building
b) the tendency to be centralized
c) the center or middle of a distribution of data
d) none of the above

Answer 23

c) the center or middle of a distribution of data

Question 24

When collected data fits under a bell-shaped curve, the general name for this situation

Answer 24

normal distribution

Question 25

Special cause variation is:

a) normal variation
b) known variation
c) abnormal variation
d) none of the above

Answer 25

c) abnormal variation

Question 26

Cp is calculated using USL, LSL, and σ. What word best describes Cp?

a) capability
b) productivity
c) potential
d) none of the above

Answer 26

c) potential

Question 27

If process calculated Cpk of 1.33, what can I say about the ability of my process to meet my customer’s expectations?

a) it will be OK
b) It would be difficult to meet
c) It will meet them most of the time
d) I can’t say one way or another

Answer 27

c) It will meet them most of the time

Question 28

SQC and SPC methods are based on the premise that process have:

a) starts and stops
b) zero variation
c) inherent variation
d) none of the above

Answer 28

c) inherent variation

Question 29

Which of the following concepts must be considered when defining quality?

a) conformance
b) consistency
c) performance
d) all of the above

Answer 29

d) all of the above

Question 30

The most common used measure of spread is:

a) range
b) standard deviation
c) Poisson distribution
d) Binomial distribution

Answer 30

b) standard deviation

Question 31

A process that exhibits only “common cause” variation is known as:

a) abnormal
b) special
c) unstable
d) stable

Answer 31

d) stable

Question 32

Which of the following indexes is NOT discussed in Chapter 3?
a) Cp b) Cpl c) Cpk d) Cm

Answer 32

b) Cpl

Question 33

My Ppk index does not consider any special cause variation. (True/False)

Answer 33

False

Question 34

If my process is in control, I should (never/always) react to an increase in a common cause variation.

Answer 34

NEVER