Question 1

Some companies that strive to achieve extremely high quality use Z=6 (six sigma) vs. Z=3 (three sigma) when constructing control limits.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following control charts is used to control the variation between samples?

Accepted Answer

A)    
B)  R 
C)  c 
D)  p 
A)    
B)  R 
C)  c 
D)  p

Question 3

Information from an R-chart can be used to construct the control limits for an   -chart.

Accepted Answer

A) True 
 B)False

Question 4

Process control charts are rarely useful for monitoring and controlling the output of service processes.

Accepted Answer

A) True 
 B)False

Question 5

It is sometimes not necessary to determine new control limits after special cause variation has been identified if the source has been eliminated without changing the process.

Accepted Answer

A) True 
 B)False

Question 6

What is the process capability ratio and how is it calculated?

Accepted Answer

Process capability refers to the natural

Question 7

Statistical process control is based on a philosophy of inspection as opposed to prevention.

Accepted Answer

A) True 
 B)False

Question 8

The individual that detects special cause variation in a process is not allowed to diagnose the root cause and correct it.

Accepted Answer

A) True 
 B)False

Question 9

An   and R-chart constructed to monitor and control a process use same raw data.

Accepted Answer

A) True 
 B)False

Question 10

Acceptance sampling is consistent with TQM's philosophy of zero defects.

Accepted Answer

A) True 
 B)False

Question 11

For a given process, the process capability ratio is not related to its control limits.

Accepted Answer

A) True 
 B)False

Question 12

Choosing among a single-, double- and multiple-sampling plans is a strategic versus an economic decision.

Accepted Answer

A) True 
 B)False

Question 13

The process centre line for both   and R-charts are both the same value because they are based on the same raw data.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following control charts is used to monitor the proportion of defective items within a sample?

Accepted Answer

A)    
B)  R 
C)  c 
D)  p 
A)    
B)  R 
C)  c 
D)  p

Question 15

Statistical process control is a subset of statistical quality control.

Accepted Answer

A) True 
 B)False

Question 16

Excel can be used to increase the efficiency and accuracy of determining the process capability ratio and the process capability index.

Accepted Answer

A) True 
 B)False

Question 17

To monitor the number of blemishes on a polished surface, a company randomly selects 10 units of output from its process and counts the number of blemishes on each unit. The sample results are shown below:   Given the sample information above, the standard deviation of the number of defects for this process would be

Accepted Answer

A)  16. 
B)  10. 
C)  1.56. 
D)  0. 
A)  16. 
B)  10. 
C)  1.56. 
D)  0.

Question 18

The expected number of defective items that will pass on to the customer with a sampling plan is known as the

Accepted Answer

A)  lot tolerance percent defective. 
B)  acceptable quality level. 
C)  average outgoing quality. 
D)  sampling plan. 
A)  lot tolerance percent defective. 
B)  acceptable quality level. 
C)  average outgoing quality. 
D)  sampling plan.

Question 19

If a sample of 40 units of output found 500 defects, then the centre line for monitoring the average number of defects per unit of output would be

Accepted Answer

A)    = 40. 
B)    = 0.08. 
C)    = 12.5. 
D)    = 20,000. 
A)    = 40. 
B)    = 0.08. 
C)    = 12.5. 
D)    = 20,000.

Question 20

Control limits are based on the special cause variation inherent in a process.

Accepted Answer

A) True 
 B)False

Some companies that strive to achieve extremely high quality use Z=6 (six sigma) vs. Z=3 (three sigma) when constructing control limits.

Which of the following control charts is used to control the variation between samples?

Information from an R-chart can be used to construct the control limits for an -chart.

Process control charts are rarely useful for monitoring and controlling the output of service processes.

It is sometimes not necessary to determine new control limits after special cause variation has been identified if the source has been eliminated without changing the process.

What is the process capability ratio and how is it calculated?

Statistical process control is based on a philosophy of inspection as opposed to prevention.

The individual that detects special cause variation in a process is not allowed to diagnose the root cause and correct it.

An and R-chart constructed to monitor and control a process use same raw data.

Acceptance sampling is consistent with TQM's philosophy of zero defects.

For a given process, the process capability ratio is not related to its control limits.

Choosing among a single-, double- and multiple-sampling plans is a strategic versus an economic decision.

The process centre line for both and R-charts are both the same value because they are based on the same raw data.

Which of the following control charts is used to monitor the proportion of defective items within a sample?

Statistical process control is a subset of statistical quality control.

Excel can be used to increase the efficiency and accuracy of determining the process capability ratio and the process capability index.

The expected number of defective items that will pass on to the customer with a sampling plan is known as the

If a sample of 40 units of output found 500 defects, then the centre line for monitoring the average number of defects per unit of output would be

Control limits are based on the special cause variation inherent in a process.

Introduction to Operations and Supply Chain Management

Quality Management

Product Design

Service Design

Processes and Technology

Capacity and Facilities Design

Human Resources

Project Management

Supply Chain Management Strategy and Design

Global Supply Chain Procurement and Distribution

Forecasting

Inventory Management

Sales and Operations Planning

Resource Planning

Lean Systems

Scheduling

Filters

Exam 3: Statistical Process Control

Some companies that strive to achieve extremely high quality use Z=6 (six sigma) vs. Z=3 (three sigma) when constructing control limits.

Which of the following control charts is used to control the variation between samples?

Information from an R-chart can be used to construct the control limits for an -chart.

Process control charts are rarely useful for monitoring and controlling the output of service processes.

It is sometimes not necessary to determine new control limits after special cause variation has been identified if the source has been eliminated without changing the process.

What is the process capability ratio and how is it calculated?

Statistical process control is based on a philosophy of inspection as opposed to prevention.

The individual that detects special cause variation in a process is not allowed to diagnose the root cause and correct it.

An and R-chart constructed to monitor and control a process use same raw data.

Acceptance sampling is consistent with TQM's philosophy of zero defects.

For a given process, the process capability ratio is not related to its control limits.

Choosing among a single-, double- and multiple-sampling plans is a strategic versus an economic decision.

The process centre line for both and R-charts are both the same value because they are based on the same raw data.

Which of the following control charts is used to monitor the proportion of defective items within a sample?

Statistical process control is a subset of statistical quality control.

Excel can be used to increase the efficiency and accuracy of determining the process capability ratio and the process capability index.

The expected number of defective items that will pass on to the customer with a sampling plan is known as the

If a sample of 40 units of output found 500 defects, then the centre line for monitoring the average number of defects per unit of output would be

Control limits are based on the special cause variation inherent in a process.

Introduction to Operations and Supply Chain Management

Quality Management

Product Design

Service Design

Processes and Technology

Capacity and Facilities Design

Human Resources

Project Management

Supply Chain Management Strategy and Design

Global Supply Chain Procurement and Distribution

Forecasting

Inventory Management

Sales and Operations Planning

Resource Planning

Lean Systems

Scheduling

Filters