Question 1

A company is interested in monitoring the average time it takes to serve its customers.An appropriate control chart would be:

Accepted Answer

A) an   chart. 
B) a p-chart. 
C) a c-chart. 
D) an R-chart. 
A) an   chart. 
B) a p-chart. 
C) a c-chart. 
D) an R-chart.

Question 2

A process is monitored with a control chart.The process is correctly judged to be in-control once the results from the most recent sample are plotted.Therefore,all of the output produced at that time is good.

Accepted Answer

A) True 
 B)False

Question 3

Explain the difference between the Baldrige Performance Excellence Program and ISO 9001:2008.

Accepted Answer

The Baldrige Performance Excellence Prog

Question 4

A hotel tracks the number of complaints per month.When the process is in control,there is an average of 35 complaints per month.Assume that a 2-sigma control limit is used.What is the upper control limit?

Accepted Answer

A) less than or equal to 35 
B) more than 35 but less than or equal to 45 
C) more than 45 but less than or equal to 55 
D) more than 55 
A) less than or equal to 35 
B) more than 35 but less than or equal to 45 
C) more than 45 but less than or equal to 55 
D) more than 55

Question 5

Which step of the Six Sigma DMAIC procedure monitors the process to make sure high performance levels are maintained?

Accepted Answer

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

Question 6

A company is interested in monitoring the variability in the weight of the fertilizer bags it produces.An appropriate control chart would be:

Accepted Answer

A) an   chart. 
B) a p-chart. 
C) a c-chart. 
D) an R-chart. 
A) an   chart. 
B) a p-chart. 
C) a c-chart. 
D) an R-chart.

Question 7

Statistical process control (SPC)is the application of statistical techniques to determine whether a quantity of material should be accepted or rejected.

Accepted Answer

A) True 
 B)False

Question 8

Table 5.3
  
-Use the information from Table 5.3.What is the upper control limit (UCL)if the bank were to use z = 2 and a sample size of 100?

Accepted Answer

A) less than or equal to 0.02 
B) greater than 0.02 but less than or equal to 0.04 
C) greater than 0.04 but less than or equal to 0.06 
D) greater than 0.06 
A) less than or equal to 0.02 
B) greater than 0.02 but less than or equal to 0.04 
C) greater than 0.04 but less than or equal to 0.06 
D) greater than 0.06

Question 9

Process capability can be addressed when:

Accepted Answer

A) assignable causes are present. 
B) a process is in statistical control. 
C) a process is in statistical control but assignable causes are present. 
D) the nominal value equals the tolerance regardless of assignable causes. 
A) assignable causes are present. 
B) a process is in statistical control. 
C) a process is in statistical control but assignable causes are present. 
D) the nominal value equals the tolerance regardless of assignable causes.

Question 10

Why is employee empowerment important in a total quality management program?

Accepted Answer

With TQM,everyone is expected to contrib

Question 11

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 1.5,what must happen with the process standard deviation?

Accepted Answer

A) The process standard deviation must be reduced by 25%. 
B) The process standard deviation must be reduced by 33%. 
C) The process standard deviation must be reduced by 50%. 
D) The process standard deviation must be reduced by 67%. 
A) The process standard deviation must be reduced by 25%. 
B) The process standard deviation must be reduced by 33%. 
C) The process standard deviation must be reduced by 50%. 
D) The process standard deviation must be reduced by 67%.

Question 12

A sampling plan is best for evaluating quality when: (1)Inspection costs are high
(2)Inspection costs are low
(3)Non-destructive testing is available
(4)Destructive testing is required

Accepted Answer

A) 1 and 3 
B) 1 and 4 
C) 2 and 3 
D) 2 and 4 
A) 1 and 3 
B) 1 and 4 
C) 2 and 3 
D) 2 and 4

Question 13

Which alternative will increase the probability of detecting a shift in the process average?

Accepted Answer

A) increasing the control limit spread 
B) taking smaller samples 
C) taking smaller samples more frequently 
D) taking larger samples more frequently 
A) increasing the control limit spread 
B) taking smaller samples 
C) taking smaller samples more frequently 
D) taking larger samples more frequently

Question 14

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 0.04 defectives.What would you do?

Accepted Answer

A) Nothing;it appears to be 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 appears to be 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 15

"Quality at the source" implies:

Accepted Answer

A) less expensive raw materials. 
B) lower scrap. 
C) higher rework costs. 
D) more final-test inspectors. 
A) less expensive raw materials. 
B) lower scrap. 
C) higher rework costs. 
D) more final-test inspectors.

Question 16

A firm that has embraced the notion of quality at the source is more likely to have:

Accepted Answer

A) an inspector at each workstation working alongside each employee. 
B) inspectors at each of their suppliers performing 100% inspection on shipments bound for them. 
C) multiple inspectors at the end of the line to make sure no defects are passed along to the customer. 
D) no inspectors. 
A) an inspector at each workstation working alongside each employee. 
B) inspectors at each of their suppliers performing 100% inspection on shipments bound for them. 
C) multiple inspectors at the end of the line to make sure no defects are passed along to the customer. 
D) no inspectors.

Question 17

If an x-bar chart is constructed using the data in Table 5.4,what conclusion can be reached?

Accepted Answer

A) The process is in control. 
B) The process is out of control. 
C) The process is capable. 
D) The process is both capable and in control. 
A) The process is in control. 
B) The process is out of control. 
C) The process is capable. 
D) The process is both capable and in control.

Question 18

A metal-cutting operation has a target value of 20 and consistently averages 19.8 with a standard deviation of 0.5.The design engineers have established an upper specification limit of 22 and a lower specification limit of 18.What is the process capability index?

Accepted Answer

A) 1.20 
B) 1.33 
C) 1.46 
D) 1.66 
A) 1.20 
B) 1.33 
C) 1.46 
D) 1.66

Question 19

When considering the plan-do-study-act cycle for problem solving,instructing other employees in the use of the new process occurs in the ________ step.

Accepted Answer

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

Question 20

Historically,the average time to service a customer complaint has been 3 days and the standard deviation has been 0.50 day.Management would like to specify the control limits for an   chart with a sample size of 10- and 3- sigma limits.Suppose the next sample of 10 yielded the following result: 3.2,2.1,3.6,2.8,3.9,3.5,2.7,4.1,2.6,and 3.3.What conclusion can be drawn?

Accepted Answer

A) Assuming the process variability is in control,the process average is also in statistical control. 
B) Assuming the process average is in control,the process average is out of statistical control. 
C) The sample size should be increased. 
D) No conclusion can be drawn because there is insufficient data. 
A) Assuming the process variability is in control,the process average is also in statistical control. 
B) Assuming the process average is in control,the process average is out of statistical control. 
C) The sample size should be increased. 
D) No conclusion can be drawn because there is insufficient data.

Exam 5: Quality and Performance

A company is interested in monitoring the average time it takes to serve its customers.An appropriate control chart would be:

A process is monitored with a control chart.The process is correctly judged to be in-control once the results from the most recent sample are plotted.Therefore,all of the output produced at that time is good.

Explain the difference between the Baldrige Performance Excellence Program and ISO 9001:2008.

A hotel tracks the number of complaints per month.When the process is in control,there is an average of 35 complaints per month.Assume that a 2-sigma control limit is used.What is the upper control limit?

Which step of the Six Sigma DMAIC procedure monitors the process to make sure high performance levels are maintained?

A company is interested in monitoring the variability in the weight of the fertilizer bags it produces.An appropriate control chart would be:

Statistical process control (SPC)is the application of statistical techniques to determine whether a quantity of material should be accepted or rejected.

Table 5.3 -Use the information from Table 5.3.What is the upper control limit (UCL)if the bank were to use z = 2 and a sample size of 100?

Process capability can be addressed when:

Why is employee empowerment important in a total quality management program?

A sampling plan is best for evaluating quality when: (1)Inspection costs are high (2)Inspection costs are low (3)Non-destructive testing is available (4)Destructive testing is required

Which alternative will increase the probability of detecting a shift in the process average?

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 0.04 defectives.What would you do?

"Quality at the source" implies:

A firm that has embraced the notion of quality at the source is more likely to have:

If an x-bar chart is constructed using the data in Table 5.4,what conclusion can be reached?

A metal-cutting operation has a target value of 20 and consistently averages 19.8 with a standard deviation of 0.5.The design engineers have established an upper specification limit of 22 and a lower specification limit of 18.What is the process capability index?

When considering the plan-do-study-act cycle for problem solving,instructing other employees in the use of the new process occurs in the ________ step.

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