Question 1

Statistical thinking is based on the concept that understanding variation and increasing variation are important keys to success.

Accepted Answer

A) True 
 B)False

Question 2

________ is the probability that a nonconforming product will be available for sale.

Accepted Answer

A)  Producer's risk 
B)  Consumer's risk 
C)  Retailer's risk 
D)  Management's risk 
E)  Manufacturer's risk 
A)  Producer's risk 
B)  Consumer's risk 
C)  Retailer's risk 
D)  Management's risk 
E)  Manufacturer's risk

Question 3

Which of the following is true of nonrandom variation?

Accepted Answer

A)  It is uncontrollable. 
B)  It is centered on a mean. 
C)  It occurs with a somewhat consistent amount of dispersion. 
D)  It results from a shift in a process mean or some unexpected occurrence. 
E)  It results in a process that is repeatable. 
A)  It is uncontrollable. 
B)  It is centered on a mean. 
C)  It occurs with a somewhat consistent amount of dispersion. 
D)  It results from a shift in a process mean or some unexpected occurrence. 
E)  It results in a process that is repeatable.

Question 4

________ is useful because it ensures independence among observations.

Accepted Answer

A)  Process capability 
B)  Optimization 
C)  Population distribution 
D)  Process stability 
E)  Randomization 
A)  Process capability 
B)  Optimization 
C)  Population distribution 
D)  Process stability 
E)  Randomization

Question 5

The ________ uses past information to predict what the next process outcome will be.

Accepted Answer

A)  np chart 
B)  u chart 
C)  moving average chart 
D)  cusum chart 
E)  p chart 
A)  np chart 
B)  u chart 
C)  moving average chart 
D)  cusum chart 
E)  p chart

Question 6

The lower limit of R is zero for sample sizes less than or equal to six.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is true of random variation?

Accepted Answer

A)  It has a cause that can be identified. 
B)  It can be easily controlled. 
C)  It occurs with a somewhat consistent amount of dispersion. 
D)  It results in a process that is not repeatable. 
E)  It results from a shift in a process mean or some unexpected occurrence. 
A)  It has a cause that can be identified. 
B)  It can be easily controlled. 
C)  It occurs with a somewhat consistent amount of dispersion. 
D)  It results in a process that is not repeatable. 
E)  It results from a shift in a process mean or some unexpected occurrence.

Question 8

________ happens when statistical quality analysis fails to result in the scrapping or reworking of a defective product.

Accepted Answer

A)  Management's risk 
B)  Producer's risk 
C)  Manufacturer's risk 
D)  Retailer's risk 
E)  Consumer's risk 
A)  Management's risk 
B)  Producer's risk 
C)  Manufacturer's risk 
D)  Retailer's risk 
E)  Consumer's risk

Question 9

In a variables control chart, five points in succession are called a process run.

Accepted Answer

A) True 
 B)False

Question 10

Statistical process control charts are tools for monitoring process variation.

Accepted Answer

A) True 
 B)False

Question 11

The diameter of a mason jar is 3 inches but can be as large as 3.03 inches and as small as 2.97 inches. Twenty-five samples of mason jars are taken and it is discovered that these components have a grand mean of 3.01 inches and a standard deviation of 0.02 inches. What is the probability of producing a bad product?

Accepted Answer

A)  0.60 
B)  0.18 
C)  0.33 
D)  0.45 
E)  0.84 
A)  0.60 
B)  0.18 
C)  0.33 
D)  0.45 
E)  0.84

Question 12

The ________ is a process chart used to monitor the average of the characteristic being measured.

Accepted Answer

A)  X chart 
B)  R chart 
C)  c chart 
D)  p chart 
E)  MR chart 
A)  X chart 
B)  R chart 
C)  c chart 
D)  p chart 
E)  MR chart

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

If it is too time consuming or inconvenient to compute subgroup averages, a median chart should be used.

Accepted Answer

A) True 
 B)False

Question 15

________ is based on the concept that all work occurs in a system of interconnected processes.

Accepted Answer

A)  Statistical thinking 
B)  Qualitative modeling 
C)  Process benchmarking 
D)  Rational subgrouping 
E)  Data interlinking 
A)  Statistical thinking 
B)  Qualitative modeling 
C)  Process benchmarking 
D)  Rational subgrouping 
E)  Data interlinking

Question 16

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

Question 17

Samples can be ________ according to time or according to sequence.

Accepted Answer

A)  random 
B)  uncontrollable 
C)  indefinite 
D)  systematic 
E)  stochastic 
A)  random 
B)  uncontrollable 
C)  indefinite 
D)  systematic 
E)  stochastic

Question 18

Describe the purpose of an s chart.

Accepted Answer

The s chart or standard deviat

Question 19

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 20

________ are often used in monitoring the production of silicon chips for computers.

Accepted Answer

A)  X charts 
B)  c charts 
C)  np charts 
D)  R charts 
E)  s charts 
A)  X charts 
B)  c charts 
C)  np charts 
D)  R charts 
E)  s charts

Statistical thinking is based on the concept that understanding variation and increasing variation are important keys to success.

________ is the probability that a nonconforming product will be available for sale.

Which of the following is true of nonrandom variation?

________ is useful because it ensures independence among observations.

The ________ uses past information to predict what the next process outcome will be.

The lower limit of R is zero for sample sizes less than or equal to six.

Which of the following is true of random variation?

________ happens when statistical quality analysis fails to result in the scrapping or reworking of a defective product.

In a variables control chart, five points in succession are called a process run.

Statistical process control charts are tools for monitoring process variation.

The ________ is a process chart used to monitor the average of the characteristic being measured.

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

If it is too time consuming or inconvenient to compute subgroup averages, a median chart should be used.

________ is based on the concept that all work occurs in a system of interconnected processes.

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?

Samples can be ________ according to time or according to sequence.

Describe the purpose of an s chart.

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

________ are often used in monitoring the production of silicon chips for computers.

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

Statistical thinking is based on the concept that understanding variation and increasing variation are important keys to success.

________ is the probability that a nonconforming product will be available for sale.

Which of the following is true of nonrandom variation?

________ is useful because it ensures independence among observations.

The ________ uses past information to predict what the next process outcome will be.

The lower limit of R is zero for sample sizes less than or equal to six.

Which of the following is true of random variation?

________ happens when statistical quality analysis fails to result in the scrapping or reworking of a defective product.

In a variables control chart, five points in succession are called a process run.

Statistical process control charts are tools for monitoring process variation.

The ________ is a process chart used to monitor the average of the characteristic being measured.

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

If it is too time consuming or inconvenient to compute subgroup averages, a median chart should be used.

________ is based on the concept that all work occurs in a system of interconnected processes.

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?

Samples can be ________ according to time or according to sequence.

Describe the purpose of an s chart.

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

________ are often used in monitoring the production of silicon chips for computers.

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