Question 1

In manufacturing, quality control is generally applied at the receiving stage from suppliers, during various production processes, and at the finished goods stage.

Accepted Answer

A) True 
 B)False

Question 2

If process quality approaches six sigma levels, then standard types of control charts are not useful.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is most closely related to Statistical Process Control (SPC)?

Accepted Answer

A) Removing common causes of variation 
B) Removing special causes of variation 
C) Removing all causes of variation 
D) Computing process capability 
A) Removing common causes of variation 
B) Removing special causes of variation 
C) Removing all causes of variation 
D) Computing process capability

Question 4

As long as no points are outside of the control limits in a control chart, the process would be considered to be in control.

Accepted Answer

A) True 
 B)False

Question 5

An   -chart is always analyzed first because the control limits in the R-chart depend on the mean (   ) of the data.

Accepted Answer

A) True 
 B)False

Question 6

To account for the process centering, a two-sided capability index is often used.

Accepted Answer

A) True 
 B)False

Question 7

Explain and give the significance of the 1:10:100 Rule.

Accepted Answer

If a defect or service error is identifi

Question 8

When the range of process variation is larger than the design specifications, the process capability index will be less than 1.

Accepted Answer

A) True 
 B)False

Question 9

Discuss the difference between a continuous metric and a discrete metric, give examples of each, and list the common control charts associated with each.

Accepted Answer

A continuous metric is one that is calcu

Question 10

Define and give an example of the three components of any control system.

Accepted Answer

The three components of any control syst

Question 11

Which one of the following statements is true?

Accepted Answer

A) Common cause variation arises from external sources that are not inherent in the process and is where statistical quality control methods are most useful. 
B) If the metric is discrete, a p- or c-chart is normally used. 
C) Statistical process control is not used in hospitals due to the high liability costs. 
D) Statistical process control charts are used when trying to monitor and control 5- and 6-sigma quality levels. 
A) Common cause variation arises from external sources that are not inherent in the process and is where statistical quality control methods are most useful. 
B) If the metric is discrete, a p- or c-chart is normally used. 
C) Statistical process control is not used in hospitals due to the high liability costs. 
D) Statistical process control charts are used when trying to monitor and control 5- and 6-sigma quality levels.

Question 12

A company that manufactures arrows for sale in archery stores is developing a new arrow with enhanced flight characteristics. From customer surveys the company has determined that the diameter of the arrow should be between 10.0 and 10.6 mm. They want to ensure the process they develop to produce the arrows will meet customer expectations; that is, the process capability index (Cp) will be greater than or equal to 1.00.
a.What value of the standard deviation of the process will yield a Cp equal to 1.00?
b.If the standard deviation of the process is actually .05, what would the diameter variation (UTL - LTL) of the arrow have to be to get a Cp of 1.00?

Accepted Answer

a.Std. dev. of process = (UTL

Question 13

It is not necessary to have a process in control when establishing control limits.

Accepted Answer

A) True 
 B)False

Question 14

Collecting continuous data is usually easier than collecting discrete data.

Accepted Answer

A) True 
 B)False

Question 15

Larger sample sizes allow smaller changes in process characteristics to be detected with higher probability.

Accepted Answer

A) True 
 B)False

Question 16

Special cause variation tends to be easily detectable using statistical methods.

Accepted Answer

A) True 
 B)False

Question 17

Statistical calculations will show that if p = .01, then the sample size needed to have at least a 95% chance of finding at least one nonconformance is

Accepted Answer

A) 30 
B) 100 
C) 300 
D) 1,000 
A) 30 
B) 100 
C) 300 
D) 1,000

Question 18

Define "quality at the source."

Accepted Answer

Quality at the source means that the peo

Question 19

Both the p-chart and the c-chart use variable data.

Accepted Answer

A) True 
 B)False

Question 20

Regarding special cause variability, all are true except

Accepted Answer

A) Disrupt the random patterns of common cause variation 
B) Arises from external sources that are not inherent in the process 
C) Appear sporadically 
D) Hard to detect using statistical methods 
A) Disrupt the random patterns of common cause variation 
B) Arises from external sources that are not inherent in the process 
C) Appear sporadically 
D) Hard to detect using statistical methods

In manufacturing, quality control is generally applied at the receiving stage from suppliers, during various production processes, and at the finished goods stage.

If process quality approaches six sigma levels, then standard types of control charts are not useful.

Which of the following is most closely related to Statistical Process Control (SPC)?

As long as no points are outside of the control limits in a control chart, the process would be considered to be in control.

An -chart is always analyzed first because the control limits in the R-chart depend on the mean ( ) of the data.

To account for the process centering, a two-sided capability index is often used.

Explain and give the significance of the 1:10:100 Rule.

When the range of process variation is larger than the design specifications, the process capability index will be less than 1.

Discuss the difference between a continuous metric and a discrete metric, give examples of each, and list the common control charts associated with each.

Define and give an example of the three components of any control system.

Which one of the following statements is true?

It is not necessary to have a process in control when establishing control limits.

Collecting continuous data is usually easier than collecting discrete data.

Larger sample sizes allow smaller changes in process characteristics to be detected with higher probability.

Special cause variation tends to be easily detectable using statistical methods.

Statistical calculations will show that if p = .01, then the sample size needed to have at least a 95% chance of finding at least one nonconformance is

Define "quality at the source."

Both the p-chart and the c-chart use variable data.

Regarding special cause variability, all are true except

Goods, Services, and Operations Management

Value Chains

Measuring Performance in Operations

Operations Strategy

Technology and Operations Management

Goods and Service Design

Process Selection, Design, and Analysis

Facility and Work Design

Supply Chain Design

Capacity Management

Forecasting and Demand Planning

Managing Inventories

Resource Management

Operations Scheduling and Sequencing

Quality Management

Lean Operating Systems

Project Management

Filters

Exam 16: Quality Control and Spc

In manufacturing, quality control is generally applied at the receiving stage from suppliers, during various production processes, and at the finished goods stage.

If process quality approaches six sigma levels, then standard types of control charts are not useful.

Which of the following is most closely related to Statistical Process Control (SPC)?

As long as no points are outside of the control limits in a control chart, the process would be considered to be in control.

An -chart is always analyzed first because the control limits in the R-chart depend on the mean ( ) of the data.

To account for the process centering, a two-sided capability index is often used.

Explain and give the significance of the 1:10:100 Rule.

When the range of process variation is larger than the design specifications, the process capability index will be less than 1.

Discuss the difference between a continuous metric and a discrete metric, give examples of each, and list the common control charts associated with each.

Define and give an example of the three components of any control system.

Which one of the following statements is true?

It is not necessary to have a process in control when establishing control limits.

Collecting continuous data is usually easier than collecting discrete data.

Larger sample sizes allow smaller changes in process characteristics to be detected with higher probability.

Special cause variation tends to be easily detectable using statistical methods.

Statistical calculations will show that if p = .01, then the sample size needed to have at least a 95% chance of finding at least one nonconformance is

Define "quality at the source."

Both the p-chart and the c-chart use variable data.

Regarding special cause variability, all are true except

Goods, Services, and Operations Management

Value Chains

Measuring Performance in Operations

Operations Strategy

Technology and Operations Management

Goods and Service Design

Process Selection, Design, and Analysis

Facility and Work Design

Supply Chain Design

Capacity Management

Forecasting and Demand Planning

Managing Inventories

Resource Management

Operations Scheduling and Sequencing

Quality Management

Lean Operating Systems

Project Management

Filters