Question 1

Using Excel to construct control charts should be avoided because most people believe using software results in too many errors.

Accepted Answer

A) True 
 B)False  False

Question 2

One goal of statistical process control is to prevent a process from producing items that have to be scrapped or reworked.

Accepted Answer

A) True 
 B)False  True

Question 3

An operating characteristic (OC) curve is a graph that measures

Accepted Answer

A)  the acceptable proportion of defects in a lot to the consumer. 
B)  the probability of accepting a lot for different quality levels with a specific sampling plan. 
C)  the probability of accepting a lot in which the fraction of defectives exceeds the lot tolerance percent defective. 
D)  the maximum number of defective items a consumer will accept in a lot. 
A)  the acceptable proportion of defects in a lot to the consumer. 
B)  the probability of accepting a lot for different quality levels with a specific sampling plan. 
C)  the probability of accepting a lot in which the fraction of defectives exceeds the lot tolerance percent defective. 
D)  the maximum number of defective items a consumer will accept in a lot. B

Question 4

Statistical process control is a tool used to monitor and improve quality.

Accepted Answer

A) True 
 B)False

Question 5

The probability of rejecting a lot that has an acceptable quality level is referred to as the

Accepted Answer

A)  producer's risk. 
B)  consumer's risk. 
C)  lot tolerance percent defective. 
D)  acceptable quality level. 
A)  producer's risk. 
B)  consumer's risk. 
C)  lot tolerance percent defective. 
D)  acceptable quality level.

Question 6

Which of the following control charts is based on the number of defects within a sample?

Accepted Answer

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

Question 7

Which of the following is not a primary purpose of statistical process control?

Accepted Answer

A)  to establish control limits 
B)  to detect special cause variations 
C)  to identify specification limits 
D)  to determine when a process is not in control 
A)  to establish control limits 
B)  to detect special cause variations 
C)  to identify specification limits 
D)  to determine when a process is not in control

Question 8

A c-chart monitors the number of defects in small samples.

Accepted Answer

A) True 
 B)False

Question 9

Variable control charts are used for quantitative measures such as weight or time.

Accepted Answer

A) True 
 B)False

Question 10

Variable (quantitative) control charts are used to monitor measurable characteristics of a process's outputs.

Accepted Answer

A) True 
 B)False

Question 11

Attribute (qualitative) control charts are used to monitor descriptive characteristics of the output of a process.

Accepted Answer

A) True 
 B)False

Question 12

With acceptance sampling, a lot is either rejected or accepted depending on the number of defects found in a sample.

Accepted Answer

A) True 
 B)False

Question 13

Only certified statisticians should use Excel to construct a control chart for a process.

Accepted Answer

A) True 
 B)False

Question 14

It is possible to have low variation within samples while at the same time having high variation between sample means.

Accepted Answer

A) True 
 B)False

Question 15

The consumer's willingness to accept lots with a small proportion of defective items is known as the acceptable

Accepted Answer

A)  sampling plan. 
B)  quality level. 
C)  consumer's risk. 
D)  producer's risk. 
A)  sampling plan. 
B)  quality level. 
C)  consumer's risk. 
D)  producer's risk.

Question 16

A multiple-sampling plan uses the smallest sample size of any sampling plan.

Accepted Answer

A) True 
 B)False

Question 17

A company produces a product which is designed to weigh 10 oz., with a tolerance of   0.5 oz. The process produces products with an average weight of 9.95 oz. and a standard deviation of 0.10 oz. According to the process capability index

Accepted Answer

A)  the process mean is off centre and most of the items are defective. 
B)  the process is capable of meeting design specifications. 
C)  the process mean is centred on the design target. 
D)  none of the above. 
A)  the process mean is off centre and most of the items are defective. 
B)  the process is capable of meeting design specifications. 
C)  the process mean is centred on the design target. 
D)  none of the above.

Question 18

Describe a double-sampling plan and explain its objective.

Accepted Answer

In a double-sampling plan, a small sampl

Question 19

A lot is rejected if the number of defective units found in a random sample exceeds a predetermined acceptable number of defective units.

Accepted Answer

A) True 
 B)False

Question 20

After special cause variation is detected, the focus changes to identifying the root cause of the variation and eliminating it.

Accepted Answer

A) True 
 B)False

Using Excel to construct control charts should be avoided because most people believe using software results in too many errors.

One goal of statistical process control is to prevent a process from producing items that have to be scrapped or reworked.

An operating characteristic (OC) curve is a graph that measures

Statistical process control is a tool used to monitor and improve quality.

The probability of rejecting a lot that has an acceptable quality level is referred to as the

Which of the following control charts is based on the number of defects within a sample?

Which of the following is not a primary purpose of statistical process control?

A c-chart monitors the number of defects in small samples.

Variable control charts are used for quantitative measures such as weight or time.

Variable (quantitative) control charts are used to monitor measurable characteristics of a process's outputs.

Attribute (qualitative) control charts are used to monitor descriptive characteristics of the output of a process.

With acceptance sampling, a lot is either rejected or accepted depending on the number of defects found in a sample.

Only certified statisticians should use Excel to construct a control chart for a process.

It is possible to have low variation within samples while at the same time having high variation between sample means.

The consumer's willingness to accept lots with a small proportion of defective items is known as the acceptable

A multiple-sampling plan uses the smallest sample size of any sampling plan.

A company produces a product which is designed to weigh 10 oz., with a tolerance of 0.5 oz. The process produces products with an average weight of 9.95 oz. and a standard deviation of 0.10 oz. According to the process capability index

Describe a double-sampling plan and explain its objective.

A lot is rejected if the number of defective units found in a random sample exceeds a predetermined acceptable number of defective units.

After special cause variation is detected, the focus changes to identifying the root cause of the variation and eliminating it.

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

Using Excel to construct control charts should be avoided because most people believe using software results in too many errors.

One goal of statistical process control is to prevent a process from producing items that have to be scrapped or reworked.

An operating characteristic (OC) curve is a graph that measures

Statistical process control is a tool used to monitor and improve quality.

The probability of rejecting a lot that has an acceptable quality level is referred to as the

Which of the following control charts is based on the number of defects within a sample?

Which of the following is not a primary purpose of statistical process control?

A c-chart monitors the number of defects in small samples.

Variable control charts are used for quantitative measures such as weight or time.

Variable (quantitative) control charts are used to monitor measurable characteristics of a process's outputs.

Attribute (qualitative) control charts are used to monitor descriptive characteristics of the output of a process.

With acceptance sampling, a lot is either rejected or accepted depending on the number of defects found in a sample.

Only certified statisticians should use Excel to construct a control chart for a process.

It is possible to have low variation within samples while at the same time having high variation between sample means.

The consumer's willingness to accept lots with a small proportion of defective items is known as the acceptable

A multiple-sampling plan uses the smallest sample size of any sampling plan.

A company produces a product which is designed to weigh 10 oz., with a tolerance of 0.5 oz. The process produces products with an average weight of 9.95 oz. and a standard deviation of 0.10 oz. According to the process capability index

Describe a double-sampling plan and explain its objective.

A lot is rejected if the number of defective units found in a random sample exceeds a predetermined acceptable number of defective units.

After special cause variation is detected, the focus changes to identifying the root cause of the variation and eliminating it.

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