Question 1

The control limits for an R chart are set:

Accepted Answer

A)  one mean distance from the average
$R$ 
B)  at -1 and +1 
C)  three standard deviations from the average
$R$ 
D)  at 0 and +1 
A)  one mean distance from the average
$R$ 
B)  at -1 and +1 
C)  three standard deviations from the average
$R$ 
D)  at 0 and +1 C

Question 2

Morgan is now using a smaller sample size,but she has forgotten to adjust the upper and lower limits to reflect the smaller sample size.What is likely to occur as she manually plots observations on the chart?

Accepted Answer

The limits are narrower with larger samples,so she is likely to observe more observations that lie outside these limits.She might decide she is observing out-of-control behavior.

Question 3

Michael has incorporated a vigorous cross-training program within his department.This is an example of which of Deming's 14 points?

Accepted Answer

A)  Improve Every Process. 
B)  Institute Training. 
C)  Drive Out Fear. 
D)  Encourage Education. 
A)  Improve Every Process. 
B)  Institute Training. 
C)  Drive Out Fear. 
D)  Encourage Education. B

Question 4

Which of the following is not one of Deming's 14 Points?

Accepted Answer

A)  Use Lowest-Tender Contracts. 
B)  Have Constancy of Purpose. 
C)  Institute Leadership of People. 
D)  Break Down Barriers. 
A)  Use Lowest-Tender Contracts. 
B)  Have Constancy of Purpose. 
C)  Institute Leadership of People. 
D)  Break Down Barriers.

Question 5

The two basic types of control charts are control charts for factors and control charts for treatments.

Accepted Answer

A) True 
 B)False

Question 6

The $\bar { X }$ chart charts the averages of small subsamples through time.

Accepted Answer

A) True 
 B)False

Question 7

Taveen,the production manager at Wire Express,has noticed that one of his machines seems to stall out briefly toward the end of a run.He is wondering whether this stalling is affecting the width of the wire product.He creates several control charts and notices about four consecutive points above the centerline and one point beyond two standard deviations from the centerline.How should Taveen react?

Accepted Answer

Taveen probably should not react at all.

Question 8

Mohammed is monitoring the diameter of bolts being produced on one of his assigned production lines.During this process,he notices one,single measurement that jumped above the upper control limit.He immediately adjusts the alignment on several machines to address the problem.Mohammed has likely committed a(n):

Accepted Answer

A)  type II error 
B)  average run length error 
C)  type I error 
D)  type I and type II error 
A)  type II error 
B)  average run length error 
C)  type I error 
D)  type I and type II error

Question 9

Jada has decided to implement weekly meetings between departments to discuss issues that occur cross-department.She also has implemented a worker morale program aimed at building teamwork.These are both events that even the most upper management will attend.Which of Deming's 14 Points is Jada addressing?

Accepted Answer

A)  Have Constancy of Purpose. 
B)  Embrace the New Philosophy. 
C)  Institute Leadership of People. 
D)  Break Down Barriers. 
A)  Have Constancy of Purpose. 
B)  Embrace the New Philosophy. 
C)  Institute Leadership of People. 
D)  Break Down Barriers.

Question 10

Which of the following are attributes charts?

Accepted Answer

A)  p chart,
$x$ chart,and u chart 
B)  p chart,
$X$ chart,and u chart 
C)  p chart,c chart,and u chart 
D)  p chart,c chart,and R chart 
A)  p chart,
$x$ chart,and u chart 
B)  p chart,
$X$ chart,and u chart 
C)  p chart,c chart,and u chart 
D)  p chart,c chart,and R chart

Question 11

Morgan decided the out-of-control behavior she observed might be due to the fact that she was using an extremely small sample.Therefore,she quadruples her sample size,and the sample is now much larger than even her original sample.Unfortunately,she forgets to adjust the upper and lower limits again to reflect the much larger sample size.What is likely to occur as she manually plots observations on the chart?

Accepted Answer

The limits are wider with smal

Question 12

Taveen,the production manager at Wire Express,has noticed that one of his machines seems to stall out briefly toward the end of a run.He is wondering whether this stalling is affecting the width of the wire product.He creates several control charts and notices about 11 consecutive points above the centerline and three points beyond two standard deviations from the centerline.How should Taveen react?

Accepted Answer

These points do meet the crite

Question 13

"Tampering" can actually make a system worse.

Accepted Answer

A) True 
 B)False

Question 14

Common cause variation is the inherent variation in an in-control process.

Accepted Answer

A) True 
 B)False

Question 15

Out-of control indicators may include a number of conditions.What is not one of these?

Accepted Answer

A)  At least 8 upward (or downward)consecutive changes 
B)  At least 8 consecutive points above (or below)the centerline 
C)  At least 1 point beyond two standard deviations from the centerline 
D)  At least 4 of 5 consecutive points beyond one standard deviation from the centerline 
A)  At least 8 upward (or downward)consecutive changes 
B)  At least 8 consecutive points above (or below)the centerline 
C)  At least 1 point beyond two standard deviations from the centerline 
D)  At least 4 of 5 consecutive points beyond one standard deviation from the centerline

Question 16

A p chart plots the proportions of items that are conforming.

Accepted Answer

A) True 
 B)False

Question 17

Jean is examining variation on a control chart.One of the machines was misaligned and is operated by an inexperienced worker.The variation caused by these factors is caused by ____.

Accepted Answer

A)  assignable causes 
B)  in statistical control causes 
C)  common causes 
D)  in control causes 
A)  assignable causes 
B)  in statistical control causes 
C)  common causes 
D)  in control causes

Question 18

The average run length (ARL)indicates the mean length of time between:

Accepted Answer

A)  false alarms in an in-control process 
B)  false alarms in an out-of-control process 
C)  out-of-control indications in an out-of--control process 
D)  type II errors in an in-control process 
A)  false alarms in an in-control process 
B)  false alarms in an out-of-control process 
C)  out-of-control indications in an out-of--control process 
D)  type II errors in an in-control process

Question 19

Mohammed is monitoring the diameter of bolts that are being produced on one of his assigned production lines.During this process,he notices nine,consecutive measurements that jumped above the upper control limit.He immediately examines the machine,finds it to be misaligned,and makes a small adjustment.Mohammed has likely committed:

Accepted Answer

A)  a type II error 
B)  both a type I and type II error 
C)  a type I error 
D)  neither a type I nor a type II error 
A)  a type II error 
B)  both a type I and type II error 
C)  a type I error 
D)  neither a type I nor a type II error

The control limits for an R chart are set:

Morgan is now using a smaller sample size,but she has forgotten to adjust the upper and lower limits to reflect the smaller sample size.What is likely to occur as she manually plots observations on the chart?

Michael has incorporated a vigorous cross-training program within his department.This is an example of which of Deming's 14 points?

Which of the following is not one of Deming's 14 Points?

The two basic types of control charts are control charts for factors and control charts for treatments.

The $\bar { X }$ chart charts the averages of small subsamples through time.

Which of the following are attributes charts?

"Tampering" can actually make a system worse.

Common cause variation is the inherent variation in an in-control process.

Out-of control indicators may include a number of conditions.What is not one of these?

A p chart plots the proportions of items that are conforming.

Jean is examining variation on a control chart.One of the machines was misaligned and is operated by an inexperienced worker.The variation caused by these factors is caused by ____.

The average run length (ARL)indicates the mean length of time between:

Introduction to Data Analysis and Decision Making

Describing the Distribution of a Single Variable

Finding Relationships Among Variables

Probability and Probability Distributions

Normal, Binomial, Poisson, and Exponential Distributions

Decision Making Under Uncertainty

Sampling and Sampling Distributions

Confidence Interval Estimation

Hypothesis Testing

Regression Analysis: Estimating Relationships

Regression Analysis: Statistical Inference

Time Series Analysis and Forecasting

Introduction to Optimization Modeling

Optimization Models

Introduction to Simulation Modeling

Simulation Models

Data Mining

Importing Data Into Excel

Analysis of Variance and Experimental Design

Filters

Exam 20: Statistical Process Control

The control limits for an R chart are set:

Morgan is now using a smaller sample size,but she has forgotten to adjust the upper and lower limits to reflect the smaller sample size.What is likely to occur as she manually plots observations on the chart?

Michael has incorporated a vigorous cross-training program within his department.This is an example of which of Deming's 14 points?

Which of the following is not one of Deming's 14 Points?

The two basic types of control charts are control charts for factors and control charts for treatments.

The Xˉ\bar { X }Xˉ chart charts the averages of small subsamples through time.

Which of the following are attributes charts?

"Tampering" can actually make a system worse.

Common cause variation is the inherent variation in an in-control process.

Out-of control indicators may include a number of conditions.What is not one of these?

A p chart plots the proportions of items that are conforming.

Jean is examining variation on a control chart.One of the machines was misaligned and is operated by an inexperienced worker.The variation caused by these factors is caused by ____.

The average run length (ARL)indicates the mean length of time between:

Introduction to Data Analysis and Decision Making

Describing the Distribution of a Single Variable

Finding Relationships Among Variables

Probability and Probability Distributions

Normal, Binomial, Poisson, and Exponential Distributions

Decision Making Under Uncertainty

Sampling and Sampling Distributions

Confidence Interval Estimation

Hypothesis Testing

Regression Analysis: Estimating Relationships

Regression Analysis: Statistical Inference

Time Series Analysis and Forecasting

Introduction to Optimization Modeling

Optimization Models

Introduction to Simulation Modeling

Simulation Models

Data Mining

Importing Data Into Excel

Analysis of Variance and Experimental Design

Filters

The $\bar { X }$ chart charts the averages of small subsamples through time.