Question 1

In manufacturing,the tolerance is the target value while the nominal specification is the permissible range around the tolerance.

Accepted Answer

A) True 
 B)False

Question 2

Quality control measures that are based on a continuous measurement system are called ________.

Accepted Answer

A) processes 
B) attributes 
C) variables 
D) statistics 
A) processes 
B) attributes 
C) variables 
D) statistics

Question 3

Find the control limits for a p-chart with   = 0.36 found from ten samples of size 126,forty-two samples of size 124,and thirteen samples of size 135.

Accepted Answer

A) LCL = 0.232 and UCL = 0.488 
B) LCL = 0.091 and UCL = 0.093 
C) LCL = 0.390 and UCL = 0.494 
D) LCL = 0 and UCL = 0.488 
A) LCL = 0.232 and UCL = 0.488 
B) LCL = 0.091 and UCL = 0.093 
C) LCL = 0.390 and UCL = 0.494 
D) LCL = 0 and UCL = 0.488

Question 4

How are control limits determined?

Accepted Answer

Since control limits are the boundaries

Question 5

A p-chart monitors the proportion of conforming items from a process output.

Accepted Answer

A) True 
 B)False

Question 6

A control chart is a run chart that has two additional horizontal lines called ________.

Accepted Answer

A) production specifications 
B) legal limits 
C) control limits 
D) process statistics 
A) production specifications 
B) legal limits 
C) control limits 
D) process statistics

Question 7

When data is collected for statistical quality control purposes,it is important to record the data,the time the data were collected,the measuring instruments that were used,who collected the data,and any other important information such as lot numbers,machine numbers and the like because ________.

Accepted Answer

A) it is required by the Federal Trade Commission 
B) this type of data can be used to justify our job 
C) this will ensure the process is in statistical control 
D) the source of quality problems can be traced more easily 
A) it is required by the Federal Trade Commission 
B) this type of data can be used to justify our job 
C) this will ensure the process is in statistical control 
D) the source of quality problems can be traced more easily

Question 8

To construct and use any control chart,first ________.

Accepted Answer

A) gather one sample data from a production process 
B) gather all the data from a production process 
C) gather at least 25 to 30 samples of data of a fixed sample size n from a production process 
D) gather exactly 50% of the data from a production process 
A) gather one sample data from a production process 
B) gather all the data from a production process 
C) gather at least 25 to 30 samples of data of a fixed sample size n from a production process 
D) gather exactly 50% of the data from a production process

Question 9

Find the control limits for the R-chart with   = 0.005 and sample size of 11.

Accepted Answer

A) The R is too small to determine control limits. 
B) LCL = 0.0011 and UCL = 0.0089 
C) LCL = 0.0056 and UCL = 0.044 
D) LCL = 0.0013 and UCL = 0.0087 
A) The R is too small to determine control limits. 
B) LCL = 0.0011 and UCL = 0.0089 
C) LCL = 0.0056 and UCL = 0.044 
D) LCL = 0.0013 and UCL = 0.0087

Question 10

Statistical process control (SPC)provides a means of identifying ________.

Accepted Answer

A) common causes of variation 
B) the process variables 
C) the process attributes 
D) special causes as well as telling us when the process is in control and should be left alone. 
A) common causes of variation 
B) the process variables 
C) the process attributes 
D) special causes as well as telling us when the process is in control and should be left alone.

Question 11

We would expect ________ percent of sample means will lay within ± 3 standard errors of the mean when the process is in control.

Accepted Answer

A) 68.3 
B) 95.4 
C) 99.7 
D) 100 
A) 68.3 
B) 95.4 
C) 99.7 
D) 100

Question 12

When a process is in statistical control,the points on a control chart should fluctuate at random between the control limits.

Accepted Answer

A) True 
 B)False

Question 13

The canister of No Way Bug Spray has a lower specification weight of 3.5 fluid ounces and an upper specification limit of 3.6 fluid ounces.The process filling standard deviation is 0.1 fluid ounces.The process is found to be in control using the control charts.What is the process capability index?

Accepted Answer

A) 0.50 
B) 1.00 
C) 2.00 
D) 0.167 
A) 0.50 
B) 1.00 
C) 2.00 
D) 0.167

Question 14

Find the control limits for the   -chart with   = 0.08,   = 0.01,and sample size of 10.

Accepted Answer

A) The R is too small to determine control limits. 
B) LCL = 0.077 and UCL = 0.083 
C) LCL = 0.769 and UCL = 0.831 
D) LCL = 0.797 and UCL = 0.803 
A) The R is too small to determine control limits. 
B) LCL = 0.077 and UCL = 0.083 
C) LCL = 0.769 and UCL = 0.831 
D) LCL = 0.797 and UCL = 0.803

Question 15

The control limits for p-charts are found using ________.

Accepted Answer

A)    ± s 
B)    ± 3s 
C)    ± 3p 
D)    ± 3x 
A)    ± s 
B)    ± 3s 
C)    ± 3p 
D)    ± 3x

Question 16

Find the control limits for the   -chart with   = 4.96,   = 0.0285,and sample size of 5.

Accepted Answer

A) LCL = 4.939 and UCL = 4.981 
B) LCL = 4.944 and UCL = 4.976 
C) LCL = 4.796 and UCL = 5.124 
D) The sample size is too small to determine control limits. 
A) LCL = 4.939 and UCL = 4.981 
B) LCL = 4.944 and UCL = 4.976 
C) LCL = 4.796 and UCL = 5.124 
D) The sample size is too small to determine control limits.

Question 17

What is the standard deviation if the average fraction nonconforming of 0.83 is found from samples of constant size 100?

Accepted Answer

A) 0.038 
B) 0.069 
C) 0.050 
D) 0.049 
A) 0.038 
B) 0.069 
C) 0.050 
D) 0.049

Question 18

The travel tube of Biker Smellum Good has a lower specification weight of 0.5 ounces and an upper specification limit of 0.52 ounces.The standard deviation is 0.01 ounces.What is the process capability index if the process appears to be in statistical control?

Accepted Answer

A) 0.0003 
B) 0.3333 
C) 1.00 
D) 2.00 
A) 0.0003 
B) 0.3333 
C) 1.00 
D) 2.00

Question 19

Which of the following is an example of common types of out-of-control conditions?

Accepted Answer

A) attributes 
B) variables 
C) presence of variation in measurement systems 
D) cycles 
A) attributes 
B) variables 
C) presence of variation in measurement systems 
D) cycles

Question 20

All of the following are historical facts about process quality control except ________.

Accepted Answer

A) replaced by computer animation in the 2010s 
B) pioneered by Western Electric Company in the 1920s 
C) mainstay of Japanese manufacturing in the 1950s 
D) began to be widely used in the United States in the 1980s 
A) replaced by computer animation in the 2010s 
B) pioneered by Western Electric Company in the 1920s 
C) mainstay of Japanese manufacturing in the 1950s 
D) began to be widely used in the United States in the 1980s

In manufacturing,the tolerance is the target value while the nominal specification is the permissible range around the tolerance.

Quality control measures that are based on a continuous measurement system are called ________.

Find the control limits for a p-chart with = 0.36 found from ten samples of size 126,forty-two samples of size 124,and thirteen samples of size 135.

How are control limits determined?

A p-chart monitors the proportion of conforming items from a process output.

A control chart is a run chart that has two additional horizontal lines called ________.

When data is collected for statistical quality control purposes,it is important to record the data,the time the data were collected,the measuring instruments that were used,who collected the data,and any other important information such as lot numbers,machine numbers and the like because ________.

To construct and use any control chart,first ________.

Find the control limits for the R-chart with = 0.005 and sample size of 11.

Statistical process control (SPC)provides a means of identifying ________.

We would expect ________ percent of sample means will lay within ± 3 standard errors of the mean when the process is in control.

When a process is in statistical control,the points on a control chart should fluctuate at random between the control limits.

The canister of No Way Bug Spray has a lower specification weight of 3.5 fluid ounces and an upper specification limit of 3.6 fluid ounces.The process filling standard deviation is 0.1 fluid ounces.The process is found to be in control using the control charts.What is the process capability index?

Find the control limits for the -chart with = 0.08, = 0.01,and sample size of 10.

The control limits for p-charts are found using ________.

Find the control limits for the -chart with = 4.96, = 0.0285,and sample size of 5.

What is the standard deviation if the average fraction nonconforming of 0.83 is found from samples of constant size 100?

The travel tube of Biker Smellum Good has a lower specification weight of 0.5 ounces and an upper specification limit of 0.52 ounces.The standard deviation is 0.01 ounces.What is the process capability index if the process appears to be in statistical control?

Which of the following is an example of common types of out-of-control conditions?

All of the following are historical facts about process quality control except ________.

Data and Business Decisions

Descriptive Statistics and Data Analysis

Probability Concepts and Distributions

Sampling and Estimation

Hypothesis Testing and Statistical Inference

Regression Analysis

Forecasting

Building and Using Decision Models

Decision Models With Uncertainty and Risk

Decisions, uncertainty, and Risk

Queues and Process Simulation Modeling

Linear Optimization

Integer, nonlinear, and Advanced Optimization Methods

Filters

Exam 8: Introduction to Statistical Quality Control

In manufacturing,the tolerance is the target value while the nominal specification is the permissible range around the tolerance.

Quality control measures that are based on a continuous measurement system are called ________.

Find the control limits for a p-chart with = 0.36 found from ten samples of size 126,forty-two samples of size 124,and thirteen samples of size 135.

How are control limits determined?

A p-chart monitors the proportion of conforming items from a process output.

A control chart is a run chart that has two additional horizontal lines called ________.

When data is collected for statistical quality control purposes,it is important to record the data,the time the data were collected,the measuring instruments that were used,who collected the data,and any other important information such as lot numbers,machine numbers and the like because ________.

To construct and use any control chart,first ________.

Find the control limits for the R-chart with = 0.005 and sample size of 11.

Statistical process control (SPC)provides a means of identifying ________.

We would expect ________ percent of sample means will lay within ± 3 standard errors of the mean when the process is in control.

When a process is in statistical control,the points on a control chart should fluctuate at random between the control limits.

The canister of No Way Bug Spray has a lower specification weight of 3.5 fluid ounces and an upper specification limit of 3.6 fluid ounces.The process filling standard deviation is 0.1 fluid ounces.The process is found to be in control using the control charts.What is the process capability index?

Find the control limits for the -chart with = 0.08, = 0.01,and sample size of 10.

The control limits for p-charts are found using ________.

Find the control limits for the -chart with = 4.96, = 0.0285,and sample size of 5.

What is the standard deviation if the average fraction nonconforming of 0.83 is found from samples of constant size 100?

The travel tube of Biker Smellum Good has a lower specification weight of 0.5 ounces and an upper specification limit of 0.52 ounces.The standard deviation is 0.01 ounces.What is the process capability index if the process appears to be in statistical control?

Which of the following is an example of common types of out-of-control conditions?

All of the following are historical facts about process quality control except ________.

Data and Business Decisions

Descriptive Statistics and Data Analysis

Probability Concepts and Distributions

Sampling and Estimation

Hypothesis Testing and Statistical Inference

Regression Analysis

Forecasting

Building and Using Decision Models

Decision Models With Uncertainty and Risk

Decisions, uncertainty, and Risk

Queues and Process Simulation Modeling

Linear Optimization

Integer, nonlinear, and Advanced Optimization Methods

Filters