Question 1

For a p-chart,the standard deviation of the proportions is 0.066933.The number of items in each sample is 45.Then p is ______.

Accepted Answer

A) There is not enough information to determine p 
B) 0)25 
C) 0)28 
D) 0)32 
A) There is not enough information to determine p 
B) 0)25 
C) 0)28 
D) 0)32

Question 2

With a c-chart,the sample size is small and may contain only one item.

Accepted Answer

A) True 
 B)False

Question 3

The range is the difference between the smallest and largest values in a sample.

Accepted Answer

A) True 
 B)False

Question 4

Variable control charts are used for quantitative measures such as weight or time.

Accepted Answer

A) True 
 B)False

Question 5

Pizazz manufactures a 5.0 oz.energy drink of the same name.Because the cans are so small,consumers are concerned that they are not receiving the full 5 ounces in each can.A quality engineer at the company is charged with analyzing the filling process and ensuring accurate readings.On 15 different occasions over the past month,she has taken a sample of 6 energy drinks off the production line and recorded their weight.If the sum of the sample means is 80.20 ounces and the sum of the sample ranges is 12.68 ounces,the LCL for an X-bar chart of this process would be

Accepted Answer

A) 4.50 
B) 4.65 
C) 4.79 
D) 4.94 
A) 4.50 
B) 4.65 
C) 4.79 
D) 4.94

Question 6

Variable control charts are used to monitor measurable characteristics of a process's outputs rather than descriptive characteristics.

Accepted Answer

A) True 
 B)False

Question 7

For the process to be capable of meeting design specification the process capability index must be

Accepted Answer

A) less than one (1.0) 
B) equal to or greater than one (1.0) 
C) less than zero (0.0) 
D) equal to or greater than zero (0.0) 
A) less than one (1.0) 
B) equal to or greater than one (1.0) 
C) less than zero (0.0) 
D) equal to or greater than zero (0.0)

Question 8

The popularity of Excel and other data analysis software has been a major factor in the increased use of statistical process control.

Accepted Answer

A) True 
 B)False

Question 9

A company produces electronic components designed to have a collector-emitted voltage of 30 V (volts),with a tolerance of + 0.2 V.The production process produces components with an average collector-emitted voltage of 30.04 V.The process capability index is 0.6.Then the standard deviation of the collector-emitted voltages of the units produced is ______.

Accepted Answer

A) 0)0889 
B) 0)0079 
C) 0)0071 
D) 0)0069 
A) 0)0889 
B) 0)0079 
C) 0)0071 
D) 0)0069

Question 10

A company produces a product which is designed to weigh 10 oz. ,with a tolerance of + 0.5 oz.The process produces products with an average weight of 9.95 oz.and a standard deviation of 0.10 oz.The process capability index for this process is

Accepted Answer

A) 1.50 
B) −1.50 
C) 1.83 
D) −1.83 
A) 1.50 
B) −1.50 
C) 1.83 
D) −1.83

Question 11

Easy Tax is a service company that prepares tax returns.An outside auditor has examined 20 samples each containing one completed tax return.The total number of defects observed over the 20 samples is 200.The LCL for the control chart constructed using three sigma is

Accepted Answer

A) -1.6 
B) 0.4 
C) 3.3 
D) 6.5 
A) -1.6 
B) 0.4 
C) 3.3 
D) 6.5

Question 12

Dumplings -To-Go (DTG)provides take-out dumplings and noodle dishes to customers at its chain of drive-through restaurants.The target for a customer's waiting time is 3.0 minutes +/- 1 minute.Each month,one of the managers observes the drive-through process and collects a sample of 4 waiting times a day over a 6 day period.The data from one restaurant appears below.If DTG were to construct an R-chart from this data,the 3-sigma LCL would be

Accepted Answer

A) 2.82 
B) 1.41 
C) 0.00 
D) −1.41 
A) 2.82 
B) 1.41 
C) 0.00 
D) −1.41

Question 13

A variable measure is a product characteristic such as

Accepted Answer

A) color. 
B) smoothness. 
C) temperature 
D) good taste 
A) color. 
B) smoothness. 
C) temperature 
D) good taste

Question 14

Dumplings -To-Go (DTG)provides take-out dumplings and noodle dishes to customers at its chain of drive-through restaurants.The target for a customer's waiting time is 3.0 minutes +/- 1 minute.Each month,one of the managers observes the drive-through process and collects a sample of 4 waiting times a day over a 6 day period.The data from one restaurant appears below.If DTG were to construct an R-chart from this data,the 3-sigma UCL would be

Accepted Answer

A) 6.42 
B) 5.87 
C) 5.63 
D) 5.01 
A) 6.42 
B) 5.87 
C) 5.63 
D) 5.01

Question 15

Statistical process control involves monitoring and controlling a process to prevent poor quality.

Accepted Answer

A) True 
 B)False

Question 16

For a given process,the process capability ratio is not related to its specification limits.

Accepted Answer

A) True 
 B)False

Question 17

A variable measure classifies while an attribute measure quantifies.

Accepted Answer

A) True 
 B)False

Question 18

A pattern test can identify an out-of-control process even if all sample points are within control limits.

Accepted Answer

A) True 
 B)False

Question 19

Dumplings -To-Go (DTG)provides take-out dumplings and noodle dishes to customers at its chain of drive-through restaurants.The target for a customer's waiting time is 3.0 minutes +/- 1 minute.Each month,one of the managers observes the drive-through process and collects a sample of 4 waiting times a day over a 6 day period.The data from one restaurant appears below.If DTG were to construct an X-bar chart from this data,the 3-sigma UCL would be

Accepted Answer

A) 6.44 
B) 5.87 
C) 3.50 
D) 2.82 
A) 6.44 
B) 5.87 
C) 3.50 
D) 2.82

Question 20

XYZ manufacturing has received an order to produce a rod 5 inches in diameter + .04 inch.In sample runs,the machine tool that will be making the rod has been able to produce rods with a mean diameter of 4.99 inches and a standard deviation of 0.011 inch.The process capability ratio for this process is

Accepted Answer

A) −1.44 
B) −1.21 
C) 1.21 
D) 1.44 
A) −1.44 
B) −1.21 
C) 1.21 
D) 1.44

For a p-chart,the standard deviation of the proportions is 0.066933.The number of items in each sample is 45.Then p is ______.

With a c-chart,the sample size is small and may contain only one item.

The range is the difference between the smallest and largest values in a sample.

Variable control charts are used for quantitative measures such as weight or time.

Variable control charts are used to monitor measurable characteristics of a process's outputs rather than descriptive characteristics.

For the process to be capable of meeting design specification the process capability index must be

The popularity of Excel and other data analysis software has been a major factor in the increased use of statistical process control.

A company produces a product which is designed to weigh 10 oz. ,with a tolerance of + 0.5 oz.The process produces products with an average weight of 9.95 oz.and a standard deviation of 0.10 oz.The process capability index for this process is

Easy Tax is a service company that prepares tax returns.An outside auditor has examined 20 samples each containing one completed tax return.The total number of defects observed over the 20 samples is 200.The LCL for the control chart constructed using three sigma is

A variable measure is a product characteristic such as

Statistical process control involves monitoring and controlling a process to prevent poor quality.

For a given process,the process capability ratio is not related to its specification limits.

A variable measure classifies while an attribute measure quantifies.

A pattern test can identify an out-of-control process even if all sample points are within control limits.

Introduction to Operations and Supply Chain Management

Supplement Operational Decision-Making Tools: Decision Analysis

Quality Management

Supplement Operational Decision-Making Tools: Acceptance Sampling

Product Design

Service Design

Processes and Technology

Capacity and Facilities

Supplement Operational Decision-Making Tools: Facility Location Models

Human Resources

Supplement Operational Decision-Making Tools: Work Measurement

Project Management

Supply Chain Management Strategy and Design

Global Supply Chain Procurement and Distribution

Supplement Operational Decision-Making Tools: Transportation and Transshipment Models

Forecasting

Inventory Management

Supplement Operational Decision-Making Tools: Simulation

Sales and Operations Planning

Supplement Operational Decision-Making Tools: Linear Programming

Enterprise Resource Planning

Lean Systems

Scheduling

Filters

Exam 4: Statistical Process Control

For a p-chart,the standard deviation of the proportions is 0.066933.The number of items in each sample is 45.Then p is ______.

With a c-chart,the sample size is small and may contain only one item.

The range is the difference between the smallest and largest values in a sample.

Variable control charts are used for quantitative measures such as weight or time.

Variable control charts are used to monitor measurable characteristics of a process's outputs rather than descriptive characteristics.

For the process to be capable of meeting design specification the process capability index must be

The popularity of Excel and other data analysis software has been a major factor in the increased use of statistical process control.

A company produces a product which is designed to weigh 10 oz. ,with a tolerance of + 0.5 oz.The process produces products with an average weight of 9.95 oz.and a standard deviation of 0.10 oz.The process capability index for this process is

Easy Tax is a service company that prepares tax returns.An outside auditor has examined 20 samples each containing one completed tax return.The total number of defects observed over the 20 samples is 200.The LCL for the control chart constructed using three sigma is

A variable measure is a product characteristic such as

Statistical process control involves monitoring and controlling a process to prevent poor quality.

For a given process,the process capability ratio is not related to its specification limits.

A variable measure classifies while an attribute measure quantifies.

A pattern test can identify an out-of-control process even if all sample points are within control limits.

Introduction to Operations and Supply Chain Management

Supplement Operational Decision-Making Tools: Decision Analysis

Quality Management

Supplement Operational Decision-Making Tools: Acceptance Sampling

Product Design

Service Design

Processes and Technology

Capacity and Facilities

Supplement Operational Decision-Making Tools: Facility Location Models

Human Resources

Supplement Operational Decision-Making Tools: Work Measurement

Project Management

Supply Chain Management Strategy and Design

Global Supply Chain Procurement and Distribution

Supplement Operational Decision-Making Tools: Transportation and Transshipment Models

Forecasting

Inventory Management

Supplement Operational Decision-Making Tools: Simulation

Sales and Operations Planning

Supplement Operational Decision-Making Tools: Linear Programming

Enterprise Resource Planning

Lean Systems

Scheduling

Filters