Question 1

The central limit theorem states that when we plot the sample means, the sampling distribution approximates a normal distribution.

Accepted Answer

A) True 
 B)False

Question 2

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 3

A process is capable if only common variation is present in the process.

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

Producer's risk is also called a ________ error.

Accepted Answer

A) type I 
B) non-response 
C) type II 
D) processing 
E) response 
A) type I 
B) non-response 
C) type II 
D) processing 
E) response

Question 6

Design a control chart to monitor the gas mileage in your car. Collect the data over time.

Accepted Answer

The control chart would include an x-bar

Question 7

Random variation is also referred to as uncontrollable variation.

Accepted Answer

A) True 
 B)False

Question 8

Statistical thinking is a decision-making skill demonstrated by the ability to draw conclusions based on data.

Accepted Answer

A) True 
 B)False

Question 9

Nonrandom variation results in a process that is not repeatable.

Accepted Answer

A) True 
 B)False

Question 10

In a variables control chart, which of the following has occurred if five points are in succession, either all above or below the center line?

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 11

Process control requires that data be gathered in samples. Discuss random sampling and systematic sampling and provide examples of each sampling method.

Accepted Answer

Random sampling ensures interdependence

Question 12

Which of the following provides a documented, proactive approach to defining how to respond when process control charts show a process is out of control?

Accepted Answer

A) response charts 
B) control plans 
C) control charts 
D) response plans 
E) process plans 
A) response charts 
B) control plans 
C) control charts 
D) response plans 
E) process plans

Question 13

A(n)________ is used when data are hypergeometrically 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 14

Which of the following is an example of an attributes chart?

Accepted Answer

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

Question 15

Control chart limits should be updated only when there is a change to the process.

Accepted Answer

A) True 
 B)False

Question 16

Provide two examples of process chart data point interpretations that are not necessarily "out of control" but would still merit further investigation and have potential for corrective actions.

Accepted Answer

There are many examples of nonrandom sit

Question 17

The ________ is often used where variation in a process is small.

Accepted Answer

A) s chart 
B) X chart 
C) np chart 
D) u chart 
E) c chart 
A) s chart 
B) X chart 
C) np chart 
D) u chart 
E) c chart

Question 18

In the study of quality, Type I error is called consumer's risk.

Accepted Answer

A) True 
 B)False

Question 19

Statistical process control charts are tools for monitoring process variation.

Accepted Answer

A) True 
 B)False

Question 20

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

Accepted Answer

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

The central limit theorem states that when we plot the sample means, the sampling distribution approximates a normal distribution.

A process is capable if only common variation is present in the process.

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

Producer's risk is also called a ________ error.

Design a control chart to monitor the gas mileage in your car. Collect the data over time.

Random variation is also referred to as uncontrollable variation.

Statistical thinking is a decision-making skill demonstrated by the ability to draw conclusions based on data.

Nonrandom variation results in a process that is not repeatable.

In a variables control chart, which of the following has occurred if five points are in succession, either all above or below the center line?

Process control requires that data be gathered in samples. Discuss random sampling and systematic sampling and provide examples of each sampling method.

Which of the following provides a documented, proactive approach to defining how to respond when process control charts show a process is out of control?

A(n)________ is used when data are hypergeometrically distributed.

Which of the following is an example of an attributes chart?

Control chart limits should be updated only when there is a change to the process.

Provide two examples of process chart data point interpretations that are not necessarily "out of control" but would still merit further investigation and have potential for corrective actions.

The ________ is often used where variation in a process is small.

In the study of quality, Type I error is called consumer's risk.

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.

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

The central limit theorem states that when we plot the sample means, the sampling distribution approximates a normal distribution.

A process is capable if only common variation is present in the process.

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

Producer's risk is also called a ________ error.

Design a control chart to monitor the gas mileage in your car. Collect the data over time.

Random variation is also referred to as uncontrollable variation.

Statistical thinking is a decision-making skill demonstrated by the ability to draw conclusions based on data.

Nonrandom variation results in a process that is not repeatable.

In a variables control chart, which of the following has occurred if five points are in succession, either all above or below the center line?

Process control requires that data be gathered in samples. Discuss random sampling and systematic sampling and provide examples of each sampling method.

Which of the following provides a documented, proactive approach to defining how to respond when process control charts show a process is out of control?

A(n)________ is used when data are hypergeometrically distributed.

Which of the following is an example of an attributes chart?

Control chart limits should be updated only when there is a change to the process.

Provide two examples of process chart data point interpretations that are not necessarily "out of control" but would still merit further investigation and have potential for corrective actions.

The ________ is often used where variation in a process is small.

In the study of quality, Type I error is called consumer's risk.

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.

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