Question 1

Statistical quality control is a subset of statistical process control.

Accepted Answer

A) True 
 B)False

Question 2

What is a distribution called when the same numbers of observations are below the mean as are above the mean?

Accepted Answer

A)  Equalized 
B)  Proportional 
C)  Wholly Uniform 
D)  Balanced 
E)  Symmetric 
A)  Equalized 
B)  Proportional 
C)  Wholly Uniform 
D)  Balanced 
E)  Symmetric

Question 3

Another way to construct the control limits for variables is to use the standard deviation as an estimate of variability of the process.

Accepted Answer

A) True 
 B)False

Question 4

Suppose a process has been monitored daily for the last ten days and the number of machine failures each day was noted. The results follow:
Day Number: 1 2 3 4 5 6 7 8 9 10
Number of Failures: 8 9 6 10 12 4 9 11 9 12
Compute control limits for a c-chart that monitors the average number of machine failures per day. Is the process in a state of control?

Accepted Answer

UCL = 18, (Ċ= ∑failures/#obser

Question 5

The different characteristics that can be measured by control charts can be divided into what two groups?

Accepted Answer

A)  Parameters and attributes 
B)  Variables and attributes 
C)  Variables and constraints 
D)  Variables and parameters 
E)  Attributes and constraints 
A)  Parameters and attributes 
B)  Variables and attributes 
C)  Variables and constraints 
D)  Variables and parameters 
E)  Attributes and constraints

Question 6

What is a p-chart?

Accepted Answer

a control chart that

Question 7

What technique answers the question of whether the process is functioning properly or not?

Accepted Answer

A)  Fishbone diagramming 
B)  Acceptance sampling 
C)  Statistical process control 
D)  Scatter plotting 
E)  Experimental design 
A)  Fishbone diagramming 
B)  Acceptance sampling 
C)  Statistical process control 
D)  Scatter plotting 
E)  Experimental design

Question 8

Descriptive statistics are used to describe quality characteristics and relationships.

Accepted Answer

A) True 
 B)False

Question 9

Joel's fresh flower processing plant processes 2000 flowers in a lot. For quality control they use a sample size of 10 flowers. Joel has established a probability of accepting a given lot as 99.74% with a proportion of defective items, in a lot, of .05. What is the AOQ?

Accepted Answer

4.96% AOQ = (P_ac)p[(N-

Question 10

Assuming that data exhibit a normal distribution, control limits set at F1F1F1S1F1F1F10 3 standard deviations from the mean capture how much common variation?

Accepted Answer

A)  50.00% 
B)  80.00% 
C)  95.44% 
D)  99.74% 
E)  99.99% 
A)  50.00% 
B)  80.00% 
C)  95.44% 
D)  99.74% 
E)  99.99%

Question 11

The standard deviation is an example of what?

Accepted Answer

A)  Traditional statistical tools 
B)  Fishbone diagramming 
C)  Acceptance sampling 
D)  Experimental design 
E)  Statistical process control 
A)  Traditional statistical tools 
B)  Fishbone diagramming 
C)  Acceptance sampling 
D)  Experimental design 
E)  Statistical process control

Question 12

Johnson Enterprises sells no-spill syrup in bottles. Management is evaluating four different machines with standard deviations of .006, .01, .022, and .04 ounces for Machines A, B, C, and D, respectively. The specification limits 11.95 and 12.05 ounces. Which machines should receive more detailed evaluation, i.e. which are statistically "capable?"

Accepted Answer

(C_P = (USL - LSL)/6?; Machine

Question 13

What is the term for the probability that a value falling outside the control limits is still due to normal variation?

Accepted Answer

A)  Type I error 
B)  Type II error 
C)  Normalization anomaly 
D)  Beta risk 
E)  Standard deviation irregularity 
A)  Type I error 
B)  Type II error 
C)  Normalization anomaly 
D)  Beta risk 
E)  Standard deviation irregularity

Question 14

Which of the following is the least important point to perform inspection?

Accepted Answer

A)  Incoming materials 
B)  Prior to costly processing 
C)  Just after costly processing 
D)  Prior to bottleneck (limited machine capacity) processing 
E)  After the product is finished 
A)  Incoming materials 
B)  Prior to costly processing 
C)  Just after costly processing 
D)  Prior to bottleneck (limited machine capacity) processing 
E)  After the product is finished

Question 15

What measures the difference between the largest and smallest observations in a set of data?

Accepted Answer

A)  Range 
B)  Coefficient of variation 
C)  Coefficient of kurtosis 
D)  Coefficient of skewness 
E)  Standard deviation 
A)  Range 
B)  Coefficient of variation 
C)  Coefficient of kurtosis 
D)  Coefficient of skewness 
E)  Standard deviation

Question 16

Define acceptance sampling.

Accepted Answer

a technique that det

Question 17

The range is an example of what?

Accepted Answer

A)  Traditional statistical tools 
B)  Fishbone diagramming 
C)  Acceptance sampling 
D)  Experimental design 
E)  Statistical process control 
A)  Traditional statistical tools 
B)  Fishbone diagramming 
C)  Acceptance sampling 
D)  Experimental design 
E)  Statistical process control

Question 18

What measures symmetry of a distribution?

Accepted Answer

A)  Range 
B)  Skewness 
C)  Standard deviation 
D)  Mean 
E)  Variance 
A)  Range 
B)  Skewness 
C)  Standard deviation 
D)  Mean 
E)  Variance

Question 19

Statistical process control tools are used most frequently because

Accepted Answer

A)  they are mathematically based 
B)  they are helpful in measuring and evaluating the quality of products 
C)  they are helpful in measuring and evaluating the customers' needs 
D)  they are qualitative evaluation techniques 
E)  they provide a definitive ROI calculation 
A)  they are mathematically based 
B)  they are helpful in measuring and evaluating the quality of products 
C)  they are helpful in measuring and evaluating the customers' needs 
D)  they are qualitative evaluation techniques 
E)  they provide a definitive ROI calculation

Question 20

Single sampling plan is when

Accepted Answer

A)  a non-random sample is drawn from every lot. 
B)  a random sample is drawn from every lot. 
C)  a second lot is sampled due to the first sample inconclusive results. 
D)  only one time is tested. 
E)  a sample plan used once and discarded. 
A)  a non-random sample is drawn from every lot. 
B)  a random sample is drawn from every lot. 
C)  a second lot is sampled due to the first sample inconclusive results. 
D)  only one time is tested. 
E)  a sample plan used once and discarded.

Statistical quality control is a subset of statistical process control.

What is a distribution called when the same numbers of observations are below the mean as are above the mean?

Another way to construct the control limits for variables is to use the standard deviation as an estimate of variability of the process.

The different characteristics that can be measured by control charts can be divided into what two groups?

What is a p-chart?

What technique answers the question of whether the process is functioning properly or not?

Descriptive statistics are used to describe quality characteristics and relationships.

Joel's fresh flower processing plant processes 2000 flowers in a lot. For quality control they use a sample size of 10 flowers. Joel has established a probability of accepting a given lot as 99.74% with a proportion of defective items, in a lot, of .05. What is the AOQ?

Assuming that data exhibit a normal distribution, control limits set at  3 standard deviations from the mean capture how much common variation?

The standard deviation is an example of what?

What is the term for the probability that a value falling outside the control limits is still due to normal variation?

Which of the following is the least important point to perform inspection?

What measures the difference between the largest and smallest observations in a set of data?

Define acceptance sampling.

The range is an example of what?

What measures symmetry of a distribution?

Statistical process control tools are used most frequently because

Single sampling plan is when

Introduction to Operations Management

Operations Strategy and Competitiveness

Product Design and Process Selection

Supply Chain Management

Total Quality Management

Just-In-Time and Lean Systems

Forecasting

Capacity Planning and Facility Location

Facility Layout

Work System Design

Inventory Management

Aggregate Planning

Resource Planning

Scheduling

Project Management

Spreadsheet Modeling: An Introduction

Introduction to Optimization

Waiting Line Models

Master Scheduling and Rough-Cut Capacity Planning

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Exam 6: Statistical Quality Control

Statistical quality control is a subset of statistical process control.

What is a distribution called when the same numbers of observations are below the mean as are above the mean?

Another way to construct the control limits for variables is to use the standard deviation as an estimate of variability of the process.

The different characteristics that can be measured by control charts can be divided into what two groups?

What is a p-chart?

What technique answers the question of whether the process is functioning properly or not?

Descriptive statistics are used to describe quality characteristics and relationships.

Joel's fresh flower processing plant processes 2000 flowers in a lot. For quality control they use a sample size of 10 flowers. Joel has established a probability of accepting a given lot as 99.74% with a proportion of defective items, in a lot, of .05. What is the AOQ?

Assuming that data exhibit a normal distribution, control limits set at  3 standard deviations from the mean capture how much common variation?

The standard deviation is an example of what?

What is the term for the probability that a value falling outside the control limits is still due to normal variation?

Which of the following is the least important point to perform inspection?

What measures the difference between the largest and smallest observations in a set of data?

Define acceptance sampling.

The range is an example of what?

What measures symmetry of a distribution?

Statistical process control tools are used most frequently because

Single sampling plan is when

Introduction to Operations Management

Operations Strategy and Competitiveness

Product Design and Process Selection

Supply Chain Management

Total Quality Management

Just-In-Time and Lean Systems

Forecasting

Capacity Planning and Facility Location

Facility Layout

Work System Design

Inventory Management

Aggregate Planning

Resource Planning

Scheduling

Project Management

Spreadsheet Modeling: An Introduction

Introduction to Optimization

Waiting Line Models

Master Scheduling and Rough-Cut Capacity Planning

Filters