Question 1

Which of the following statements is true?

Accepted Answer

A)  For a variables control chart, n should be fairly large, frequently 50-300 observations. 
B)  For an attribute control chart, n is typically 5-10 observations, and rarely larger than 24. 
C)  For an attribute control chart, n should be large enough to include at least one defective unit. 
D)  None of the above. 
A)  For a variables control chart, n should be fairly large, frequently 50-300 observations. 
B)  For an attribute control chart, n is typically 5-10 observations, and rarely larger than 24. 
C)  For an attribute control chart, n should be large enough to include at least one defective unit. 
D)  None of the above. C

Question 2

The quality tool that shows the relationship between two variables is a histogram.

Accepted Answer

A) True 
 B)False  False

Question 3

Which of the following statements about process capability is accurate?

Accepted Answer

A)  Cpk is a better measure of process capability than Cp. 
B)  Cp is exactly equal to Cpk when the mean is centered in the specification limits. 
C)  Given the same process, Cpk is always less than or equal to Cp. 
D)  All of the above are accurate. 
A)  Cpk is a better measure of process capability than Cp. 
B)  Cp is exactly equal to Cpk when the mean is centered in the specification limits. 
C)  Given the same process, Cpk is always less than or equal to Cp. 
D)  All of the above are accurate. D

Question 4

A machining process is capable of producing a component with an average specification of 5 inches and a process standard deviation of 0.1 inch.Supposing the customer accepts the component as long as it falls between 4.8 inches and 5.2 inches,then the process capability is

Accepted Answer

A)  1.333. 
B)  1.5. 
C)  0.667. 
D)  1.0. 
A)  1.333. 
B)  1.5. 
C)  0.667. 
D)  1.0.

Question 5

Which of the following makes the most sense,given today's view of quality control?

Accepted Answer

A)  Full-time, certified inspectors are preferred for all critical control points. 
B)  The department receiving the inputs is the preferred location for the critical control point. 
C)  The person doing the job should have the responsibility of inspection. 
D)  The manager of the process should be inspecting quality at critical points. 
A)  Full-time, certified inspectors are preferred for all critical control points. 
B)  The department receiving the inputs is the preferred location for the critical control point. 
C)  The person doing the job should have the responsibility of inspection. 
D)  The manager of the process should be inspecting quality at critical points.

Question 6

A process for filling liquid laundry detergent bottles monitors the volume in each bottle.The operations manager has taken 5 samples with 4 observations (bottles)in each sample to determine if the variation in volume is reasonable.The measurement unit is fluid ounces.Calculate the center line for a process control chart that indicates whether the variation within samples is reasonable (in a state of control).

Accepted Answer

A)  >1.0. 
B)  Between 0 and 1.0. 
C)  Less than 0. 
D)  There is not enough information to determine the correct response. 
A)  >1.0. 
B)  Between 0 and 1.0. 
C)  Less than 0. 
D)  There is not enough information to determine the correct response.

Question 7

Generally,two types of data may be collected from sampling at an inspection point.These two types of data are

Accepted Answer

A)  variable and attribute data. 
B)  variable and conditional data. 
C)  constant and attribute data. 
D)  constant and conditional data. 
A)  variable and attribute data. 
B)  variable and conditional data. 
C)  constant and attribute data. 
D)  constant and conditional data.

Question 8

The chair of the Quality Department at Motorola University wants to construct a p-chart for determining whether the four faculty members teaching the course are in a state of control concerning the number of students who fail in the course.Accordingly,the chair sampled 500 final grades from last year for each instructor,and computed the number of failures per instructor as 13,11,0,and 16 respectively.Compute the upper and lower standard control limits for this chart.

Accepted Answer

A)  0.9500 and 0.0500. 
B)  0.0600 and 0.1400. 
C)  0.0388 and 0.0012. 
D)  None of the above. 
A)  0.9500 and 0.0500. 
B)  0.0600 and 0.1400. 
C)  0.0388 and 0.0012. 
D)  None of the above.

Question 9

Regarding the design of a quality control system,which of the following statements is correct?

Accepted Answer

A)  First, decide on the type of measurement required, then who will collect the data. 
B)  First, decide on the amount of inspection needed, then critical points and type of measurement needed. 
C)  First, decide who will be the inspector, then that person determines the critical points and collects the data. 
D)  Decide on the critical points first, then the type and amount of measurement needed. 
A)  First, decide on the type of measurement required, then who will collect the data. 
B)  First, decide on the amount of inspection needed, then critical points and type of measurement needed. 
C)  First, decide who will be the inspector, then that person determines the critical points and collects the data. 
D)  Decide on the critical points first, then the type and amount of measurement needed.

Question 10

Attribute control occurs when the product characteristic is measured on a continuous scale.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following techniques are used for continuous improvement?

Accepted Answer

A)  Pareto charts. 
B)  Cause-and-effect diagrams. 
C)  Process control charts. 
D)  All of the above 
A)  Pareto charts. 
B)  Cause-and-effect diagrams. 
C)  Process control charts. 
D)  All of the above

Question 12

Suppose that you have taken 30 samples of 200 units each and calculated the proportion defective as p = .075.What is the upper control limit for a p-chart?

Accepted Answer

A)  .2192 
B)  .0191 
C)  .1309 
D)  .7500 
A)  .2192 
B)  .0191 
C)  .1309 
D)  .7500

Question 13

Which of the following statements is NOT correct?

Accepted Answer

A)  Six sigma projects require measurement of financial impact be closely tracked, compared to lean projects that do not insist on financial tracking. 
B)  Six sigma relies more on dedicated experts to guide projects as compared to lean. 
C)  Lean projects tend to be smaller and simpler compared to six sigma projects. 
D)  Lean projects tend to support strategic priorities more than is the case for six sigma projects. 
A)  Six sigma projects require measurement of financial impact be closely tracked, compared to lean projects that do not insist on financial tracking. 
B)  Six sigma relies more on dedicated experts to guide projects as compared to lean. 
C)  Lean projects tend to be smaller and simpler compared to six sigma projects. 
D)  Lean projects tend to support strategic priorities more than is the case for six sigma projects.

Question 14

List and explain the five steps of the DMAIC process.

Accepted Answer

(1) Define: The process is selected for

Question 15

Lean projects are usually simpler than six sigma projects.

Accepted Answer

A) True 
 B)False

Question 16

In process capability analysis,the standard deviation ($\sigma$)refers to the standard deviation of sample measures.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following statements about six sigma is NOT correct?

Accepted Answer

A)  The six sigma approach is suited only for manufacturing processes. 
B)  Six sigma programs employ full-time specialists called black belts. 
C)  Six sigma employs a structured process improvement technique. 
D)  Data and metrics are vital in a six sigma approach. 
A)  The six sigma approach is suited only for manufacturing processes. 
B)  Six sigma programs employ full-time specialists called black belts. 
C)  Six sigma employs a structured process improvement technique. 
D)  Data and metrics are vital in a six sigma approach.

Question 18

A cause-and-effect diagram

Accepted Answer

A)  identifies common causes of quality defects . 
B)  is often used in conjunction with a Pareto chart. 
C)  is also called a fishbone diagram. 
D)  has all of the above features. 
A)  identifies common causes of quality defects . 
B)  is often used in conjunction with a Pareto chart. 
C)  is also called a fishbone diagram. 
D)  has all of the above features.

Question 19

__________ are ideal for monitoring continuous data.

Accepted Answer

A)  p-charts 
B)  x-bar and R-charts 
C)  Ishikawa charts 
D)  None of the above 
A)  p-charts 
B)  x-bar and R-charts 
C)  Ishikawa charts 
D)  None of the above

Question 20

Six sigma projects are typically managed by workers certified as black belts.

Accepted Answer

A) True 
 B)False

Which of the following statements is true?

The quality tool that shows the relationship between two variables is a histogram.

Which of the following statements about process capability is accurate?

A machining process is capable of producing a component with an average specification of 5 inches and a process standard deviation of 0.1 inch.Supposing the customer accepts the component as long as it falls between 4.8 inches and 5.2 inches,then the process capability is

Which of the following makes the most sense,given today's view of quality control?

Generally,two types of data may be collected from sampling at an inspection point.These two types of data are

Regarding the design of a quality control system,which of the following statements is correct?

Attribute control occurs when the product characteristic is measured on a continuous scale.

Which of the following techniques are used for continuous improvement?

Suppose that you have taken 30 samples of 200 units each and calculated the proportion defective as p = .075.What is the upper control limit for a p-chart?

Which of the following statements is NOT correct?

List and explain the five steps of the DMAIC process.

Lean projects are usually simpler than six sigma projects.

In process capability analysis,the standard deviation ( $\sigma$ )refers to the standard deviation of sample measures.

Which of the following statements about six sigma is NOT correct?

A cause-and-effect diagram

__________ are ideal for monitoring continuous data.

Six sigma projects are typically managed by workers certified as black belts.

The Operations Function

Operations and Supply Chain Strategy

Product Design

Process Selection

Service Delivery System Design

Process-Flow Analysis

Lean Thinking and Lean Systems

Managing Quality

Forecasting

Capacity Planning

Scheduling Operations

Project Planning and Scheduling

Independent Demand Inventory

Materials Requirements Planning and ERP

Supply Chain Management

Sourcing

Global Logistics

Filters

Exam 9: Quality Control and Improvement

Which of the following statements is true?

The quality tool that shows the relationship between two variables is a histogram.

Which of the following statements about process capability is accurate?

A machining process is capable of producing a component with an average specification of 5 inches and a process standard deviation of 0.1 inch.Supposing the customer accepts the component as long as it falls between 4.8 inches and 5.2 inches,then the process capability is

Which of the following makes the most sense,given today's view of quality control?

Generally,two types of data may be collected from sampling at an inspection point.These two types of data are

Regarding the design of a quality control system,which of the following statements is correct?

Attribute control occurs when the product characteristic is measured on a continuous scale.

Which of the following techniques are used for continuous improvement?

Suppose that you have taken 30 samples of 200 units each and calculated the proportion defective as p = .075.What is the upper control limit for a p-chart?

Which of the following statements is NOT correct?

List and explain the five steps of the DMAIC process.

Lean projects are usually simpler than six sigma projects.

In process capability analysis,the standard deviation ( σ\sigmaσ )refers to the standard deviation of sample measures.

Which of the following statements about six sigma is NOT correct?

A cause-and-effect diagram

__________ are ideal for monitoring continuous data.

Six sigma projects are typically managed by workers certified as black belts.

The Operations Function

Operations and Supply Chain Strategy

Product Design

Process Selection

Service Delivery System Design

Process-Flow Analysis

Lean Thinking and Lean Systems

Managing Quality

Forecasting

Capacity Planning

Scheduling Operations

Project Planning and Scheduling

Independent Demand Inventory

Materials Requirements Planning and ERP

Supply Chain Management

Sourcing

Global Logistics

Filters

In process capability analysis,the standard deviation ( $\sigma$ )refers to the standard deviation of sample measures.