Question 1

An example of a type II error would be:

Accepted Answer

A)  counting a student's True/False response incorrect when it is actually correct. 
B)  convicting an innocent defendant. 
C)  eating food that you were unaware was spoiled. 
D)  counting a student's True/False response incorrect when it is actually incorrect. 
A)  counting a student's True/False response incorrect when it is actually correct. 
B)  convicting an innocent defendant. 
C)  eating food that you were unaware was spoiled. 
D)  counting a student's True/False response incorrect when it is actually incorrect.

Question 2

Table 5.4
The manager of Champion Cooling Company has recently implemented a statistical process control method. The accompanying table shows the recorded temperatures of five different samples of walk-in coolers that were produced in the previous month.
  
-Using the data in Table 5.4, what is the value of the center line for the chart that monitors performance to target?

Accepted Answer

A)  3.9 
B)  102.0 
C)  103.2 
D)  103.7 
A)  3.9 
B)  102.0 
C)  103.2 
D)  103.7

Question 3

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 $ \bar{x} $ chart with a sample size of 10- and 3- sigma limits. The LCL for the chart would be:

Accepted Answer

A)  less than 2.40. 
B)  greater than 2.40 but less than or equal to 2.45. 
C)  greater than 2.45 but less than or equal to 2.50. 
D)  greater than 2.50. 
A)  less than 2.40. 
B)  greater than 2.40 but less than or equal to 2.45. 
C)  greater than 2.45 but less than or equal to 2.50. 
D)  greater than 2.50.

Question 4

Appraisal costs are associated with preventing defects before they happen.

Accepted Answer

A) True 
 B)False

Question 5

Which one of the following is a consequence of internal failures?

Accepted Answer

A)  increased customer service 
B)  increased inventory costs 
C)  increased productivity 
D)  decreased lead time 
A)  increased customer service 
B)  increased inventory costs 
C)  increased productivity 
D)  decreased lead time

Question 6

The UCL and LCL for an $ \bar{x} $ 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

Question 7

An example of a type I error would be:

Accepted Answer

A)  throwing away a perfectly good banana. 
B)  counting a student's multiple choice response correct when it is actually incorrect. 
C)  releasing a guilty defendant. 
D)  counting a student's multiple choice response correct when it is actually correct. 
A)  throwing away a perfectly good banana. 
B)  counting a student's multiple choice response correct when it is actually incorrect. 
C)  releasing a guilty defendant. 
D)  counting a student's multiple choice response correct when it is actually correct.

Question 8

Full-time teachers and leaders of teams involved in Six Sigma projects are referred to as ________.

Accepted Answer

The answer of Full-time teachers and leaders of teams involved...

Question 9

If a product initially fails to live up to the customer's expectations, which dimension of quality might salvage the sale and the company's reputation?

Accepted Answer

A)  psychological impressions 
B)  fitness for use 
C)  support 
D)  value 
A)  psychological impressions 
B)  fitness for use 
C)  support 
D)  value

Question 10

MKS Inc., produces meter sticks that have a target length of 100 centimeters with upper and lower specification limits of 100.05 and 99.95 centimeters respectively. Their existing process produces meter sticks with an average length of 100.00 centimeters and a standard deviation of 0.015 centimeters. What is their current process capability index?

Accepted Answer

A)  0.44 
B)  0.83 
C)  1.11 
D)  1.26 
A)  0.44 
B)  0.83 
C)  1.11 
D)  1.26

Question 11

The UCL and LCL for an $ \bar{x} $ chart are 25 and 15 respectively. The central line is 20, and the process variability is considered to be in statistical control. The results of the next six sample means are 18, 23, 17, 21, 24, and 16. What should you do?

Accepted Answer

A)  Nothing; the process is in control. 
B)  Explore the assignable causes because the second, fourth, and fifth samples are above the mean. 
C)  Explore the assignable causes because there is a run. 
D)  Explore the assignable causes because there is a trend. 
A)  Nothing; the process is in control. 
B)  Explore the assignable causes because the second, fourth, and fifth samples are above the mean. 
C)  Explore the assignable causes because there is a run. 
D)  Explore the assignable causes because there is a trend.

Question 12

Process capability determines whether a process is capable of producing the product or services that customers demand.

Accepted Answer

A) True 
 B)False

Question 13

When a process fails to satisfy a customer:

Accepted Answer

A)  it is quite often the customer's fault. 
B)  it is considered a defect. 
C)  it is time to reengineer the process. 
D)  it is usually half the customer's fault and half the company's fault. 
A)  it is quite often the customer's fault. 
B)  it is considered a defect. 
C)  it is time to reengineer the process. 
D)  it is usually half the customer's fault and half the company's fault.

Question 14

Which step of the Six Sigma DMAIC procedure involves identifying data sources and preparing a data collection plan?

Accepted Answer

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

Question 15

Which one of the following statements is True?

Accepted Answer

A)  Appraisal costs decrease as quality level decreases. 
B)  Appraisal costs increase as the variation of output increases. 
C)  Appraisal costs increase as the variation of output decreases. 
D)  Appraisal costs increase as quality level increases. 
A)  Appraisal costs decrease as quality level decreases. 
B)  Appraisal costs increase as the variation of output increases. 
C)  Appraisal costs increase as the variation of output decreases. 
D)  Appraisal costs increase as quality level increases.

Question 16

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 $ \bar{x} $ chart with a sample size of 10- and 3- sigma limits. Suppose the average service time from the next 10 samples 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 days. 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.

Question 17

In acceptance sampling, the ________ is the proportion defective that the buyer will allow in an incoming shipment.

Accepted Answer

acceptable

Question 18

Which one of the following is considered to be an appraisal cost?

Accepted Answer

A)  cost of quality audits 
B)  cost of supplier programs 
C)  cost of rework 
D)  cost of process design 
A)  cost of quality audits 
B)  cost of supplier programs 
C)  cost of rework 
D)  cost of process design

Question 19

What is one reason that Six Sigma is more difficult to apply to service processes?

Accepted Answer

A)  There is no manual that suggests how Six Sigma can be applied to services. 
B)  The work product is more difficult to see. 
C)  There is no way to measure process capability of a service product. 
D)  The National Six Sigma Society cautions against using it for services. 
A)  There is no manual that suggests how Six Sigma can be applied to services. 
B)  The work product is more difficult to see. 
C)  There is no way to measure process capability of a service product. 
D)  The National Six Sigma Society cautions against using it for services.

Question 20

Table 5.4
The manager of Champion Cooling Company has recently implemented a statistical process control method. The accompanying table shows the recorded temperatures of five different samples of walk-in coolers that were produced in the previous month.
  
-Use the information in Table 5.4. The upper control limit for the x-bar chart with three sigma limits is:

Accepted Answer

A)  105.9. 
B)  103.7. 
C)  103.2. 
D)  102.3. 
A)  105.9. 
B)  103.7. 
C)  103.2. 
D)  102.3.

Exam 3: Quality and Performance

An example of a type II error would be:

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 xˉ \bar{x} xˉ chart with a sample size of 10- and 3- sigma limits. The LCL for the chart would be:

Appraisal costs are associated with preventing defects before they happen.

Which one of the following is a consequence of internal failures?

The UCL and LCL for an xˉ \bar{x} xˉ 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 a type I error would be:

Full-time teachers and leaders of teams involved in Six Sigma projects are referred to as ________.

If a product initially fails to live up to the customer's expectations, which dimension of quality might salvage the sale and the company's reputation?

The UCL and LCL for an xˉ \bar{x} xˉ chart are 25 and 15 respectively. The central line is 20, and the process variability is considered to be in statistical control. The results of the next six sample means are 18, 23, 17, 21, 24, and 16. What should you do?

Process capability determines whether a process is capable of producing the product or services that customers demand.

When a process fails to satisfy a customer:

Which step of the Six Sigma DMAIC procedure involves identifying data sources and preparing a data collection plan?

Which one of the following statements is True?

In acceptance sampling, the ________ is the proportion defective that the buyer will allow in an incoming shipment.

Which one of the following is considered to be an appraisal cost?

What is one reason that Six Sigma is more difficult to apply to service processes?

Using Operations to Create Value

Process Strategy and Analysis

Capacity Planning

Constraint Management

Lean Systems

Project Management

Forecasting

Inventory Management

Operations Planning and Scheduling

Resource Planning

Supply Chain Design

Supply Chain Logistic Networks

Supply Chain Integration

Supply Chain Sustainability

Supplement A Decision Making

Supplement J Operations Scheduling

Supplement K Layout

Supplement B Waiting Lines

Supplement C Special Inventory Models

Supplement D Linear Programming

Supplement E Simulation

Supplement F Financial Analysis

Supplement G Acceptance Sampling Plans

Supplement H Measuring Output Rates

Supplement I Learning Curve Analysis

Filters

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 $\bar{x}$ chart with a sample size of 10- and 3- sigma limits. The LCL for the chart would be:

The UCL and LCL for an $\bar{x}$ 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?

The UCL and LCL for an $\bar{x}$ chart are 25 and 15 respectively. The central line is 20, and the process variability is considered to be in statistical control. The results of the next six sample means are 18, 23, 17, 21, 24, and 16. What should you do?