Question 1

Six Sigma efforts are aimed at eliminating waste.

Accepted Answer

A) True 
 B)False

Question 2

The seven tools of quality control are equally applicable to both manufacturing and service industries.

Accepted Answer

A) True 
 B)False

Question 3

A cause-and-effect diagram:

Accepted Answer

A) Identifies common causes of quality defects 
B) Is often used in conjunction with a Pareto chart 
C) Is also called a fishbone diagram 
D) All of the above are true 
A) Identifies common causes of quality defects 
B) Is often used in conjunction with a Pareto chart 
C) Is also called a fishbone diagram 
D) All of the above are true

Question 4

Name the seven tools of quality that are typically used in a manufacturing process.Could all of these tools be applied to service operations? Suggest some possible service operations scenarios wherein we could apply all/some of these tools.

Accepted Answer

Seven tools of quality: Cause-and-effect

Question 5

"A production process delivers large amount of scrap products.Top management has discovered that improper machine maintenance is the reason behind this failure."
The above statement is an example of a special cause of variation.

Accepted Answer

A) True 
 B)False

Question 6

List and explain the five steps of the DMAIC process.

Accepted Answer

(1)Define: The process is selected for i

Question 7

Six Sigma projects are typically managed by workers certified as black belts.

Accepted Answer

A) True 
 B)False

Question 8

If failure costs were very high,a company would still use inspection.

Accepted Answer

A) True 
 B)False

Question 9

There are two indicators of a process shift-points outside the control limits and an upward or downward trend in the process average.

Accepted Answer

A) True 
 B)False

Question 10

Attribute control occurs when the product characteristic is measured on a continuous scale.

Accepted Answer

A) True 
 B)False

Question 11

For which of the following would a p-chart be used?

Accepted Answer

A) Monitor dispersion in sample data 
B) Measure the number of defects per unit 
C) Measure the central tendency 
D) Measure the fraction defective 
A) Monitor dispersion in sample data 
B) Measure the number of defects per unit 
C) Measure the central tendency 
D) Measure the fraction defective

Question 12

Which of the following quality control sample statistics indicates a quality characteristic that is an attribute?

Accepted Answer

A) Mean 
B) Proportion 
C) Variance 
D) Standard deviation 
A) Mean 
B) Proportion 
C) Variance 
D) Standard deviation

Question 13

Which of the following is/are assumption(s)of process control?

Accepted Answer

A) Random variability cannot be eliminated unless the process is redesigned. 
B) Common causes represent random variability. 
C) Production processes are not usually found in a state of control. 
D) All of the above 
A) Random variability cannot be eliminated unless the process is redesigned. 
B) Common causes represent random variability. 
C) Production processes are not usually found in a state of control. 
D) All of the above

Question 14

The Cp measure requires the process to be centered for an accurate measure of process capability.

Accepted Answer

A) True 
 B)False

Question 15

Lean projects are usually simpler than six sigma projects.

Accepted Answer

A) True 
 B)False

Question 16

The quality tool that shows the relationship between two variables is a histogram.

Accepted Answer

A) True 
 B)False

Question 17

Suppose that you have taken 30 samples of 200 units each and calculated the proportion defective as p = .075.What is the upper control limit for a p-chart?

Accepted Answer

A) .2192 
B) .0191 
C) .1309 
D) .7500 
A) .2192 
B) .0191 
C) .1309 
D) .7500

Question 18

The Chair of the Quality Department at Motorola University wants to construct a p-chart for determining whether the four faculty members teaching the course are in a state of control concerning the number of students who fail in the course.Accordingly,the Chair sampled 500 final grades from last year for each instructor,and computed the number of failures per instructor as 13,11,0,and 16 respectively.Compute the upper and lower standard control limits for this chart.

Accepted Answer

A) 0.9500 and 0.0500 
B) 0.0600 and 0.1400 
C) 0.0388 and 0.0012 
D) None of the above 
A) 0.9500 and 0.0500 
B) 0.0600 and 0.1400 
C) 0.0388 and 0.0012 
D) None of the above

Six Sigma efforts are aimed at eliminating waste.

The seven tools of quality control are equally applicable to both manufacturing and service industries.

A cause-and-effect diagram:

Name the seven tools of quality that are typically used in a manufacturing process.Could all of these tools be applied to service operations? Suggest some possible service operations scenarios wherein we could apply all/some of these tools.

"A production process delivers large amount of scrap products.Top management has discovered that improper machine maintenance is the reason behind this failure." The above statement is an example of a special cause of variation.

List and explain the five steps of the DMAIC process.

Six Sigma projects are typically managed by workers certified as black belts.

If failure costs were very high,a company would still use inspection.

There are two indicators of a process shift-points outside the control limits and an upward or downward trend in the process average.

Attribute control occurs when the product characteristic is measured on a continuous scale.

For which of the following would a p-chart be used?

Which of the following quality control sample statistics indicates a quality characteristic that is an attribute?

Which of the following is/are assumption(s)of process control?

The C_p measure requires the process to be centered for an accurate measure of process capability.

Lean projects are usually simpler than six sigma projects.

The quality tool that shows the relationship between two variables is a histogram.

Suppose that you have taken 30 samples of 200 units each and calculated the proportion defective as p = .075.What is the upper control limit for a p-chart?

The Operations Function

Operations and Supply Chain Strategy

Product Design

Process Selection

Service Delivery System Design

Process-Flow Analysis

Lean Thinking and Lean Systems

Managing Quality

Supply Chain Management

Forecasting

Capacity Planning

Scheduling Operations

Project Planning and Scheduling

Independent Demand Inventory

Materials Requirements Planning and ERP

Filters

Exam 9: Quality Control and Improvement

Six Sigma efforts are aimed at eliminating waste.

The seven tools of quality control are equally applicable to both manufacturing and service industries.

A cause-and-effect diagram:

Name the seven tools of quality that are typically used in a manufacturing process.Could all of these tools be applied to service operations? Suggest some possible service operations scenarios wherein we could apply all/some of these tools.

"A production process delivers large amount of scrap products.Top management has discovered that improper machine maintenance is the reason behind this failure." The above statement is an example of a special cause of variation.

List and explain the five steps of the DMAIC process.

Six Sigma projects are typically managed by workers certified as black belts.

If failure costs were very high,a company would still use inspection.

There are two indicators of a process shift-points outside the control limits and an upward or downward trend in the process average.

Attribute control occurs when the product characteristic is measured on a continuous scale.

For which of the following would a p-chart be used?

Which of the following quality control sample statistics indicates a quality characteristic that is an attribute?

Which of the following is/are assumption(s)of process control?

The Cp measure requires the process to be centered for an accurate measure of process capability.

Lean projects are usually simpler than six sigma projects.

The quality tool that shows the relationship between two variables is a histogram.

Suppose that you have taken 30 samples of 200 units each and calculated the proportion defective as p = .075.What is the upper control limit for a p-chart?

The Operations Function

Operations and Supply Chain Strategy

Product Design

Process Selection

Service Delivery System Design

Process-Flow Analysis

Lean Thinking and Lean Systems

Managing Quality

Supply Chain Management

Forecasting

Capacity Planning

Scheduling Operations

Project Planning and Scheduling

Independent Demand Inventory

Materials Requirements Planning and ERP

Filters

The C_p measure requires the process to be centered for an accurate measure of process capability.