Question 1

Processes that achieve capability indexes of 1.25 are world-class capable.

Accepted Answer

A) True 
 B)False

Question 2

A ________ is used when data are geometrically distributed.

Accepted Answer

A)  p chart 
B)  u chart 
C)  c chart 
D)  h chart 
E)  g chart 
A)  p chart 
B)  u chart 
C)  c chart 
D)  h chart 
E)  g chart

Question 3

To ensure that processes are stable, data are gathered in ________.

Accepted Answer

A)  batches 
B)  networks 
C)  samples 
D)  lots 
E)  sets 
A)  batches 
B)  networks 
C)  samples 
D)  lots 
E)  sets

Question 4

The ________ is used for monitoring variables and measurement on a continuous scale.

Accepted Answer

A)  cusum chart 
B)  c chart 
C)  X chart 
D)  np chart 
E)  moving average chart 
A)  cusum chart 
B)  c chart 
C)  X chart 
D)  np chart 
E)  moving average chart

Question 5

The ________ is used to identify slight but sustained shifts in a universe where there is no independence between observations.

Accepted Answer

A)  cusum chart 
B)  moving average chart 
C)  s chart 
D)  np chart 
E)  R chart 
A)  cusum chart 
B)  moving average chart 
C)  s chart 
D)  np chart 
E)  R chart

Question 6

Interlinking is useful in helping to identify causal relationships between variables.

Accepted Answer

A) True 
 B)False

Question 7

Quality practitioners should not compare process chart limits with product specifications.

Accepted Answer

A) True 
 B)False

Question 8

The  $ \bar{x} $ chart is a process chart used to monitor the ________ of the characteristic being measured.

Accepted Answer

A)  range 
B)  average 
C)  mode 
D)  median 
E)  standard deviation 
A)  range 
B)  average 
C)  mode 
D)  median 
E)  standard deviation

Question 9

Process stability means that the variation observed in the process is nonrandom variation and not random variation.

Accepted Answer

A) True 
 B)False

Question 10

Explain why random samples are difficult to achieve in a production environment.

Accepted Answer

In a process industry, multiple products

Question 11

X chart is an example of a variables chart.

Accepted Answer

A) True 
 B)False

Question 12

In a variables control chart, which of the following is likely to occur if two points in succession are farther than two standard deviations from the mean?

Accepted Answer

A)  erratic behavior 
B)  nonrandom event 
C)  process drift 
D)  natural variation 
E)  process run 
A)  erratic behavior 
B)  nonrandom event 
C)  process drift 
D)  natural variation 
E)  process run

Question 13

To ________ means to sample in such a way that every piece of product has an equal chance of being selected for inspection.

Accepted Answer

A)  randomize 
B)  optimize 
C)  stabilize 
D)  rectify 
E)  modify 
A)  randomize 
B)  optimize 
C)  stabilize 
D)  rectify 
E)  modify

Question 14

Statistical tools focus on causes rather than effects.

Accepted Answer

A) True 
 B)False

Question 15

What is the lower limit of R for sample sizes less than or equal to six?

Accepted Answer

A)  -1 
B)  6 
C)  0 
D)  -6 
E)  1 
A)  -1 
B)  6 
C)  0 
D)  -6 
E)  1

Question 16

The ________ is the difference between the largest measurement and the smallest measurement in a particular sample.

Accepted Answer

A)  range 
B)  median 
C)  mode 
D)  standard deviation 
E)  mean 
A)  range 
B)  median 
C)  mode 
D)  standard deviation 
E)  mean

Question 17

Nonrandom variation is centered on a mean and occurs with a consistent amount of dispersion.

Accepted Answer

A) True 
 B)False

Question 18

________ variation results from some event, such as shift in a process mean or some unexpected occurrence.

Accepted Answer

A)  Uncontrollable 
B)  Nonrandom 
C)  Stochastic 
D)  Random 
E)  Indefinite 
A)  Uncontrollable 
B)  Nonrandom 
C)  Stochastic 
D)  Random 
E)  Indefinite

Question 19

________ variation is centered on a mean and occurs with a somewhat consistent amount of dispersion.

Accepted Answer

A)  Nonrandom 
B)  Specific 
C)  Systematic 
D)  Abnormal 
E)  Random 
A)  Nonrandom 
B)  Specific 
C)  Systematic 
D)  Abnormal 
E)  Random

Question 20

A 50 volt battery must be between 55 and 45 volts when it leaves the factory. Two hundred samples of batteries have yielded the following data: average charge of 49 volts with a standard deviation of 2.5 volts. What is the process capability?

Accepted Answer

A)  0.06 
B)  0.80 
C)  0.53 
D)  0.12 
E)  0.38 
A)  0.06 
B)  0.80 
C)  0.53 
D)  0.12 
E)  0.38

Processes that achieve capability indexes of 1.25 are world-class capable.

A ________ is used when data are geometrically distributed.

To ensure that processes are stable, data are gathered in ________.

The ________ is used for monitoring variables and measurement on a continuous scale.

The ________ is used to identify slight but sustained shifts in a universe where there is no independence between observations.

Interlinking is useful in helping to identify causal relationships between variables.

Quality practitioners should not compare process chart limits with product specifications.

The $\bar{x}$ chart is a process chart used to monitor the ________ of the characteristic being measured.

Process stability means that the variation observed in the process is nonrandom variation and not random variation.

Explain why random samples are difficult to achieve in a production environment.

X chart is an example of a variables chart.

In a variables control chart, which of the following is likely to occur if two points in succession are farther than two standard deviations from the mean?

To ________ means to sample in such a way that every piece of product has an equal chance of being selected for inspection.

Statistical tools focus on causes rather than effects.

What is the lower limit of R for sample sizes less than or equal to six?

The ________ is the difference between the largest measurement and the smallest measurement in a particular sample.

Nonrandom variation is centered on a mean and occurs with a consistent amount of dispersion.

________ variation results from some event, such as shift in a process mean or some unexpected occurrence.

________ variation is centered on a mean and occurs with a somewhat consistent amount of dispersion.

A 50 volt battery must be between 55 and 45 volts when it leaves the factory. Two hundred samples of batteries have yielded the following data: average charge of 49 volts with a standard deviation of 2.5 volts. What is the process capability?

Differing Perspectives on Quality

Quality Theory

Global Supply Chain Quality and International Quality Standards

Strategic Quality Planning

The Voice of the Customer

The Voice of the Market

Quality and Innovation in Product and Process Design

Designing Quality Services

Managing Supplier Quality in the Supply Chain

The Tools of Quality

Statistically Based Quality Improvement for Attributes

Six Sigma Management and Lean Tools

Managing Quality Improvement Teams and Projects

Implementing and Validating the Quality System

Filters

Exam 11: Statistically Based Quality Improvement for Variables

Processes that achieve capability indexes of 1.25 are world-class capable.

A ________ is used when data are geometrically distributed.

To ensure that processes are stable, data are gathered in ________.

The ________ is used for monitoring variables and measurement on a continuous scale.

The ________ is used to identify slight but sustained shifts in a universe where there is no independence between observations.

Interlinking is useful in helping to identify causal relationships between variables.

Quality practitioners should not compare process chart limits with product specifications.

The xˉ \bar{x} xˉ chart is a process chart used to monitor the ________ of the characteristic being measured.

Process stability means that the variation observed in the process is nonrandom variation and not random variation.

Explain why random samples are difficult to achieve in a production environment.

X chart is an example of a variables chart.

In a variables control chart, which of the following is likely to occur if two points in succession are farther than two standard deviations from the mean?

To ________ means to sample in such a way that every piece of product has an equal chance of being selected for inspection.

Statistical tools focus on causes rather than effects.

What is the lower limit of R for sample sizes less than or equal to six?

The ________ is the difference between the largest measurement and the smallest measurement in a particular sample.

Nonrandom variation is centered on a mean and occurs with a consistent amount of dispersion.

________ variation results from some event, such as shift in a process mean or some unexpected occurrence.

________ variation is centered on a mean and occurs with a somewhat consistent amount of dispersion.

A 50 volt battery must be between 55 and 45 volts when it leaves the factory. Two hundred samples of batteries have yielded the following data: average charge of 49 volts with a standard deviation of 2.5 volts. What is the process capability?

Differing Perspectives on Quality

Quality Theory

Global Supply Chain Quality and International Quality Standards

Strategic Quality Planning

The Voice of the Customer

The Voice of the Market

Quality and Innovation in Product and Process Design

Designing Quality Services

Managing Supplier Quality in the Supply Chain

The Tools of Quality

Statistically Based Quality Improvement for Attributes

Six Sigma Management and Lean Tools

Managing Quality Improvement Teams and Projects

Implementing and Validating the Quality System

Filters

The $\bar{x}$ chart is a process chart used to monitor the ________ of the characteristic being measured.