Question 1

Regarding control charts,changing from two-sigma limits to three-sigma limits:

Accepted Answer

A) increases the probability of concluding nothing has changed,when in fact it has. 
B) increases the probability of searching for a cause when none exists. 
C) decreases the probability that the process average will change. 
D) decreases the probability that defects will be generated by the process. 
A) increases the probability of concluding nothing has changed,when in fact it has. 
B) increases the probability of searching for a cause when none exists. 
C) decreases the probability that the process average will change. 
D) decreases the probability that defects will be generated by the process.

Question 2

Two types of control charts useful for variable quality measures are the ________ and the ________.

Accepted Answer

The answer of Two types of control charts useful for...

Question 3

The upper and lower specifications for a service are 10 min.and 8 min. ,respectively.The process average is 9 min.and the process capability ratio is 1.33.What is the process standard deviation?

Accepted Answer

A) 0.1 
B) 0.15 
C) 0.20 
D) 0.25 
A) 0.1 
B) 0.15 
C) 0.20 
D) 0.25

Question 4

A bank randomly looks at loan applications and checks them for errors.Ten applications and the number of errors identified on the applications are found in the following table.When the process is working correctly,the average number of errors found is 2.Construct a c-chart to determine if the process is in control.

Accepted Answer

@#IMG-DLM& The proce

Question 5

A prime example of an internal failure cost is the:

Accepted Answer

A) labor cost associated with inspecting every item produced. 
B) labor cost associated with repairing an item returned under warranty. 
C) material cost of a piece of stock metal that has had too large a hole drilled in it. 
D) material cost of the paint applied to the case of a finished unit. 
A) labor cost associated with inspecting every item produced. 
B) labor cost associated with repairing an item returned under warranty. 
C) material cost of a piece of stock metal that has had too large a hole drilled in it. 
D) material cost of the paint applied to the case of a finished unit.

Question 6

In acceptance sampling,when the random sample passes the buyer's incoming test (low number of defects found),the next action taken is to:

Accepted Answer

A) accept the entire lot of incoming materials. 
B) do additional testing to reduce the risk of accepting a bad-quality lot. 
C) place the lot on hold and wait for additional lots from this seller to be tested to assure consistent good quality. 
D) 100% inspect the lot because some defects were found. 
A) accept the entire lot of incoming materials. 
B) do additional testing to reduce the risk of accepting a bad-quality lot. 
C) place the lot on hold and wait for additional lots from this seller to be tested to assure consistent good quality. 
D) 100% inspect the lot because some defects were found.

Question 7

A(n)________ specifies the sample size,the time between successive samples,and decision rules that determine when action should be taken.

Accepted Answer

The answer of A(n)________ specifies the sample size,the time between...

Question 8

The 15-year-old car didn't dazzle students or members of the opposite sex,but it started every morning and evening and got the professor to his destination on time,thereby scoring high on the:

Accepted Answer

A) psychological impressions scale of quality. 
B) fitness for use scale of quality. 
C) support scale of quality. 
D) bells and whistles scale of quality. 
A) psychological impressions scale of quality. 
B) fitness for use scale of quality. 
C) support scale of quality. 
D) bells and whistles scale of quality.

Question 9

Regarding control charts,changing from three-sigma limits to two-sigma limits:

Accepted Answer

A) increases the probability of concluding nothing has changed,when in fact it has. 
B) increases the probability of searching for a cause when none exists. 
C) decreases the probability that the process average will change. 
D) decreases the probability that defects will be generated by the process. 
A) increases the probability of concluding nothing has changed,when in fact it has. 
B) increases the probability of searching for a cause when none exists. 
C) decreases the probability that the process average will change. 
D) decreases the probability that defects will be generated by the process.

Question 10

A manufacturer embarking on a Six Sigma program sets the goal of having true Six Sigma capability for all processes by the end of the month.If their current process capability index on a key metric is less than 2.0 and the process capability ratio is 1.70,what must happen with the process standard deviation?

Accepted Answer

A) The process standard deviation must be reduced by 50%. 
B) The process standard deviation must be reduced by 33%. 
C) The process standard deviation must be reduced by 25%. 
D) The process standard deviation must be reduced by 15%. 
A) The process standard deviation must be reduced by 50%. 
B) The process standard deviation must be reduced by 33%. 
C) The process standard deviation must be reduced by 25%. 
D) The process standard deviation must be reduced by 15%.

Question 11

Historically,the average proportion of defective bars has been 0.015.Samples will be of 100 bars each.Construct a p-chart using z = 3.Suppose a sample had 0.07 defectives.What would you do?

Accepted Answer

A) Nothing;it is just random variation. 
B) Look for assignable causes. 
C) Change z to 2 and take another sample. 
D) Change z to 4 and continue sampling. 
A) Nothing;it is just random variation. 
B) Look for assignable causes. 
C) Change z to 2 and take another sample. 
D) Change z to 4 and continue sampling.

Question 12

External failure costs arise when a defect is discovered after the customer has received the product or service.

Accepted Answer

A) True 
 B)False

Question 13

The UCL and LCL for an   chart are 100 ounces and 95 ounces,respectively.The sample size is 5.The inspector looks at the very next unit and finds that it is 108 ounces.What can you conclude? Why?

Accepted Answer

Nothing yet.The weight of an i

Question 14

An example of an internal failure cost would be warranty cost.

Accepted Answer

A) True 
 B)False

Question 15

Which step of the Six Sigma DMAIC procedure applies tools such as Pareto charts and cause-and-effect diagrams to determine where major process redesign may be necessary?

Accepted Answer

A) Define 
B) Measure 
C) Analyze 
D) Improve 
E) Control 
A) Define 
B) Measure 
C) Analyze 
D) Improve 
E) Control

Question 16

When considering the plan-do-study-act cycle for problem solving,quantitative goals are set for process improvement in the ________ step.

Accepted Answer

A) plan 
B) do 
C) study 
D) act 
A) plan 
B) do 
C) study 
D) act

Question 17

Products never have more than one defect per unit.

Accepted Answer

A) True 
 B)False

Question 18

The central line on a p-chart is 0.50 with a UCL of 0.65 and an LCL of 0.35.The results of the next six samples are 0.60,0.37,0.45,0.48,0.45,and 0.42.What should you do?

Accepted Answer

A) Nothing;the process is behaving as expected. 
B) Explore the assignable causes because three observations are above the central line. 
C) Explore assignable causes because there is a run. 
D) Increase the sample size to get a better measure. 
A) Nothing;the process is behaving as expected. 
B) Explore the assignable causes because three observations are above the central line. 
C) Explore assignable causes because there is a run. 
D) Increase the sample size to get a better measure.

Question 19

Which one of the following is part of prevention costs?

Accepted Answer

A) the costs of quality audits 
B) the costs resulting from scrap 
C) the costs of improving process design and product design 
D) the costs of lawsuits from injury from use of the product 
A) the costs of quality audits 
B) the costs resulting from scrap 
C) the costs of improving process design and product design 
D) the costs of lawsuits from injury from use of the product

Question 20

Table 5.3
  
-Four samples of 100 each were taken from an assembly line,with the following results:   Using the historical average as the central line of the chart,which one of the following is the limit for an attributes control chart with z = 2?

Accepted Answer

A) UCL > 0.1 and LCL > 0.03 B) UCL > 0.1 and LCL 0.03 D) UCL < 0.1 and LCL < 0.03 A) UCL > 0.1 and LCL > 0.03 B) UCL > 0.1 and LCL 0.03 D) UCL < 0.1 and LCL < 0.03

Exam 5: Quality and Performance

Regarding control charts,changing from two-sigma limits to three-sigma limits:

Two types of control charts useful for variable quality measures are the ________ and the ________.

The upper and lower specifications for a service are 10 min.and 8 min. ,respectively.The process average is 9 min.and the process capability ratio is 1.33.What is the process standard deviation?

A prime example of an internal failure cost is the:

In acceptance sampling,when the random sample passes the buyer's incoming test (low number of defects found),the next action taken is to:

A(n)________ specifies the sample size,the time between successive samples,and decision rules that determine when action should be taken.

The 15-year-old car didn't dazzle students or members of the opposite sex,but it started every morning and evening and got the professor to his destination on time,thereby scoring high on the:

Regarding control charts,changing from three-sigma limits to two-sigma limits:

Historically,the average proportion of defective bars has been 0.015.Samples will be of 100 bars each.Construct a p-chart using z = 3.Suppose a sample had 0.07 defectives.What would you do?

External failure costs arise when a defect is discovered after the customer has received the product or service.

The UCL and LCL for an chart are 100 ounces and 95 ounces,respectively.The sample size is 5.The inspector looks at the very next unit and finds that it is 108 ounces.What can you conclude? Why?

An example of an internal failure cost would be warranty cost.

Which step of the Six Sigma DMAIC procedure applies tools such as Pareto charts and cause-and-effect diagrams to determine where major process redesign may be necessary?

When considering the plan-do-study-act cycle for problem solving,quantitative goals are set for process improvement in the ________ step.

Products never have more than one defect per unit.

The central line on a p-chart is 0.50 with a UCL of 0.65 and an LCL of 0.35.The results of the next six samples are 0.60,0.37,0.45,0.48,0.45,and 0.42.What should you do?

Which one of the following is part of prevention costs?

Table 5.3 -Four samples of 100 each were taken from an assembly line,with the following results: Using the historical average as the central line of the chart,which one of the following is the limit for an attributes control chart with z = 2?

Using Operations to Compete

Project Management

Process Strategy

Process Analysis

Capacity Planning

Constraint Management

Lean Systems

Supply Chain Inventory Management

Supply Chain Design

Supply Chain Location Decisions

Supply Chain Integration

Supply Chain Sustainability and Humanitarian Logistics

Forecasting

Operations Planning and Scheduling

Resource Planning

Decision Making

Waiting Line

Special Inventory Models

Linear Programming

Simulation

Financial Analysis

Acceptance Sampling Plans

Measuring Output Rates

Learning Curve Analysis

Operations Scheduling

Filters

Two types of control charts useful for variable quality measures are the and the .