Question 1

The relationship between the process capability and the design specifications is measured by the ________.

Accepted Answer

A) process control index 
B) process control monitor 
C) process capability chart 
D) process capability index 
A) process control index 
B) process control monitor 
C) process capability chart 
D) process capability index

Question 2

Whenever the calculated LCL for a p-chart is negative,use ________.

Accepted Answer

A) that value for the LCL because being negative is not a problem 
B) the UCL - 1 instead 
C) zero since the fraction nonconforming can never be negative 
D) zero because a negative LCL is too confusing to use 
A) that value for the LCL because being negative is not a problem 
B) the UCL - 1 instead 
C) zero since the fraction nonconforming can never be negative 
D) zero because a negative LCL is too confusing to use

Question 3

Statistical quality control is necessary because no two outputs from any production process are exactly alike.

Accepted Answer

A) True 
 B)False

Question 4

Compare and contrast common causes of variation and special causes of variation.

Accepted Answer

No two outputs from any production proce

Question 5

Control limits are chosen statistically so that there is a high probability that sample statistics will fall randomly between ________.

Accepted Answer

A) the lower control limit and the upper control limit if the process is out of control 
B) the lower process specification limit and higher process specification limit if the process is in control 
C) the lower control limit and the upper control limit if the process is in control 
D) the lower process specification limit and higher process specification limit if the process is out of control 
A) the lower control limit and the upper control limit if the process is out of control 
B) the lower process specification limit and higher process specification limit if the process is in control 
C) the lower control limit and the upper control limit if the process is in control 
D) the lower process specification limit and higher process specification limit if the process is out of control

Question 6

Briefly discuss the advantages and disadvantages of using a variable sample size for attributes data.

Accepted Answer

In many applications,it is desirable to

Question 7

A run chart is simply a control chart with two additional horizontal lines.

Accepted Answer

A) True 
 B)False

Question 8

All of the following are possible process capability situations except ________.

Accepted Answer

A) the natural variation in the output is smaller than the design tolerance 
B) the natural variation and the design specifications are about the same size 
C) the natural variation,the unnatural variation,and the design specifications are nearly the same 
D) the range of process variation is larger than the design specifications 
A) the natural variation in the output is smaller than the design tolerance 
B) the natural variation and the design specifications are about the same size 
C) the natural variation,the unnatural variation,and the design specifications are nearly the same 
D) the range of process variation is larger than the design specifications

Question 9

Process capability analysis involves comparing the distribution of process output to specifications when only common causes of variation are present.

Accepted Answer

A) True 
 B)False

Question 10

Differentiate between the three possible situations for process capability.

Accepted Answer

There are three important elements of pr

Question 11

Quality control measures that come from counting are called ________.

Accepted Answer

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

Question 12

A p-chart is used to monitor ________.

Accepted Answer

A) the standard deviation for nonconforming items 
B) the proportion of nonconforming items 
C) the number of nonconforming items 
D) the product specifications 
A) the standard deviation for nonconforming items 
B) the proportion of nonconforming items 
C) the number of nonconforming items 
D) the product specifications

Question 13

Differentiate between a run chart and a control chart.

Accepted Answer

A run chart is a line chart in which the

Question 14

The common causes of variation are the ________.

Accepted Answer

A) variations in the measurement systems of a process alone 
B) variations resulted from many small differences in the factors of a process,taken together 
C) variations that can be explained 
D) variations caused by any one of the factors of a process 
A) variations in the measurement systems of a process alone 
B) variations resulted from many small differences in the factors of a process,taken together 
C) variations that can be explained 
D) variations caused by any one of the factors of a process

Question 15

Find the control limits for the   -chart with   = 239,   = 17,and sample size of 9.

Accepted Answer

A) LCL = 233.27 and UCL = 244.73 
B) LCL = 232.66 and UCL = 245.34 
C) LCL = 235.87 and UCL = 242.13 
D) LCL = 234.302 and UCL = 234.698 
A) LCL = 233.27 and UCL = 244.73 
B) LCL = 232.66 and UCL = 245.34 
C) LCL = 235.87 and UCL = 242.13 
D) LCL = 234.302 and UCL = 234.698

Question 16

Permissible variation in a process variable as defined by a nominal specification and tolerance will fall between ________.

Accepted Answer

A) the lower control limit and the upper control limit 
B) the worst process output and the best process output 
C) the common causes of variation and the special causes of variation 
D) the lower specification limit and the upper specification limit 
A) the lower control limit and the upper control limit 
B) the worst process output and the best process output 
C) the common causes of variation and the special causes of variation 
D) the lower specification limit and the upper specification limit

Question 17

What is the role of statistics and data analysis in studying process output?

Accepted Answer

The role of statistics is to provide too

Question 18

The R-chart monitors the ________.

Accepted Answer

A) manageability of the process 
B) strength of the process 
C) centering of the process 
D) uniformity of the process 
A) manageability of the process 
B) strength of the process 
C) centering of the process 
D) uniformity of the process

Question 19

Find the control limits for the R-chart with   = 27 and sample size of 12.

Accepted Answer

A) LCL = 0.283 and UCL = 1.717 
B) LCL = 7.641 and UCL = 46.359 
C) LCL = 6.912 and UCL = 47.088 
D) LCL = 3.396 and UCL = 20.604 
A) LCL = 0.283 and UCL = 1.717 
B) LCL = 7.641 and UCL = 46.359 
C) LCL = 6.912 and UCL = 47.088 
D) LCL = 3.396 and UCL = 20.604

Question 20

Find the control limits for the   -chart with   = 0.45,   = 0.02,and sample size of 15.

Accepted Answer

A) The R is too small to determine control limits. 
B) LCL = 0.445 and UCL = 0.455 
C) LCL = 0.446 and UCL = 0.454 
D) LCL = 0.443 and UCL = 0.457 
A) The R is too small to determine control limits. 
B) LCL = 0.445 and UCL = 0.455 
C) LCL = 0.446 and UCL = 0.454 
D) LCL = 0.443 and UCL = 0.457

The relationship between the process capability and the design specifications is measured by the ________.

Whenever the calculated LCL for a p-chart is negative,use ________.

Statistical quality control is necessary because no two outputs from any production process are exactly alike.

Compare and contrast common causes of variation and special causes of variation.

Control limits are chosen statistically so that there is a high probability that sample statistics will fall randomly between ________.

Briefly discuss the advantages and disadvantages of using a variable sample size for attributes data.

A run chart is simply a control chart with two additional horizontal lines.

All of the following are possible process capability situations except ________.

Process capability analysis involves comparing the distribution of process output to specifications when only common causes of variation are present.

Differentiate between the three possible situations for process capability.

Quality control measures that come from counting are called ________.

A p-chart is used to monitor ________.

Differentiate between a run chart and a control chart.

The common causes of variation are the ________.

Find the control limits for the -chart with = 239, = 17,and sample size of 9.

Permissible variation in a process variable as defined by a nominal specification and tolerance will fall between ________.

What is the role of statistics and data analysis in studying process output?

The R-chart monitors the ________.

Find the control limits for the R-chart with = 27 and sample size of 12.

Find the control limits for the -chart with = 0.45, = 0.02,and sample size of 15.

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

The relationship between the process capability and the design specifications is measured by the ________.

Whenever the calculated LCL for a p-chart is negative,use ________.

Statistical quality control is necessary because no two outputs from any production process are exactly alike.

Compare and contrast common causes of variation and special causes of variation.

Control limits are chosen statistically so that there is a high probability that sample statistics will fall randomly between ________.

Briefly discuss the advantages and disadvantages of using a variable sample size for attributes data.

A run chart is simply a control chart with two additional horizontal lines.

All of the following are possible process capability situations except ________.

Process capability analysis involves comparing the distribution of process output to specifications when only common causes of variation are present.

Differentiate between the three possible situations for process capability.

Quality control measures that come from counting are called ________.

A p-chart is used to monitor ________.

Differentiate between a run chart and a control chart.

The common causes of variation are the ________.

Find the control limits for the -chart with = 239, = 17,and sample size of 9.

Permissible variation in a process variable as defined by a nominal specification and tolerance will fall between ________.

What is the role of statistics and data analysis in studying process output?

The R-chart monitors the ________.

Find the control limits for the R-chart with = 27 and sample size of 12.

Find the control limits for the -chart with = 0.45, = 0.02,and sample size of 15.

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