Question 1

When monitoring a process's output with a quantitative variable either an R-chart or an   -chart is used,but never both.

Accepted Answer

A) True 
 B)False

Question 2

If a pattern is evident in the points plotted on a control chart,the points are always considered evidence that the process is in control.

Accepted Answer

A) True 
 B)False

Question 3

A control chart that uses the actual number of defects per item to monitor a process is known as a

Accepted Answer

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

Question 4

In some cases,the   -chart is used without the R-chart because the within sample variation is not of concern.

Accepted Answer

A) True 
 B)False

Question 5

A p-chart is used to monitor the proportion defective in the output of a process.

Accepted Answer

A) True 
 B)False

Question 6

The process capability index indicates how much a process mean differs from the target specification value.

Accepted Answer

A) True 
 B)False

Question 7

Tolerances reflect the amount of common cause variation allowed in a process.

Accepted Answer

A) True 
 B)False

Question 8

Statistical process control is only effective for service processes.

Accepted Answer

A) True 
 B)False

Question 9

Employee training in statistical process control is a fundamental principle in total quality management programs.

Accepted Answer

A) True 
 B)False

Question 10

If the quality of a process's output is determined by the average value of a sample,use a(n)___ control chart.

Accepted Answer

A)    
B) R 
C) c 
D) p 
A)    
B) R 
C) c 
D) p

Question 11

Control chart sample sizes are becoming smaller because it is easier to detect a pattern with Excel or other data analysis software.

Accepted Answer

A) True 
 B)False

Question 12

Statistical process control is a subset of statistical quality control.

Accepted Answer

A) True 
 B)False

Question 13

One advantage of using a pattern test is that special cause variations may be identified before any points are plotted outside the control limits.

Accepted Answer

A) True 
 B)False

Question 14

A process capability ratio greater than one shows that a process is capable of producing output within its specification limits.

Accepted Answer

A) True 
 B)False

Question 15

Control charts visually show when a process is not within statistical control limits.

Accepted Answer

A) True 
 B)False

Question 16

The popularity of Excel and other data analysis software has been a major factor in the increased use of statistical process control.

Accepted Answer

A) True 
 B)False

Question 17

Process control is achieved by taking periodic samples from a process and plotting the sample points on a chart to determine if the process is within control limits.

Accepted Answer

A) True 
 B)False

Question 18

Special cause variation in a process is more likely to be detected with

Accepted Answer

A) wider control limits. 
B) narrow control limits. 
C) wider specification limits. 
D) narrow specification limits. 
A) wider control limits. 
B) narrow control limits. 
C) wider specification limits. 
D) narrow specification limits.

Question 19

All processes contain a certain amount of variation in their output.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following control charts is based on the number of defects within a sample?

Accepted Answer

A)    
B) R 
C) c 
D) p 
A)    
B) R 
C) c 
D) p

Exam 3: Statistical Process Control

When monitoring a process's output with a quantitative variable either an R-chart or an -chart is used,but never both.

If a pattern is evident in the points plotted on a control chart,the points are always considered evidence that the process is in control.

A control chart that uses the actual number of defects per item to monitor a process is known as a

In some cases,the -chart is used without the R-chart because the within sample variation is not of concern.

A p-chart is used to monitor the proportion defective in the output of a process.

The process capability index indicates how much a process mean differs from the target specification value.

Tolerances reflect the amount of common cause variation allowed in a process.

Statistical process control is only effective for service processes.

Employee training in statistical process control is a fundamental principle in total quality management programs.

If the quality of a process's output is determined by the average value of a sample,use a(n)___ control chart.

Control chart sample sizes are becoming smaller because it is easier to detect a pattern with Excel or other data analysis software.

Statistical process control is a subset of statistical quality control.

One advantage of using a pattern test is that special cause variations may be identified before any points are plotted outside the control limits.

A process capability ratio greater than one shows that a process is capable of producing output within its specification limits.

Control charts visually show when a process is not within statistical control limits.

The popularity of Excel and other data analysis software has been a major factor in the increased use of statistical process control.

Process control is achieved by taking periodic samples from a process and plotting the sample points on a chart to determine if the process is within control limits.

Special cause variation in a process is more likely to be detected with

All processes contain a certain amount of variation in their output.

Which of the following control charts is based on the number of defects within a sample?

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