Question 1

The ________ distribution specifies the probability that n customers will arrive in T time periods.

Accepted Answer

The answer of The ________ distribution specifies the probability that...

Question 2

The manager of a car wash wants to know how fast his new crew is processing cars through the wash area. He notices that it takes cars an average of about 30 minutes in line to reach the car wash, and his spot checks during the day indicated an average of seven cars in line waiting to be washed. What was the processing rate for his new crew that day?

Accepted Answer

A)  less than or equal to 2.0 minutes per car 
B)  greater than 2.0 but less than or equal to 3.0 minutes per car 
C)  greater than 3.0 but less than or equal to 4.0 minutes per car 
D)  greater than 4.0 minutes per car 
A)  less than or equal to 2.0 minutes per car 
B)  greater than 2.0 but less than or equal to 3.0 minutes per car 
C)  greater than 3.0 but less than or equal to 4.0 minutes per car 
D)  greater than 4.0 minutes per car

Question 3

The standard assumption in the single-server model is that there is an infinite number of customers and that customers will wait in line as long as it takes to get served.

Accepted Answer

A) True 
 B)False

Question 4

With a single-server model, increasing the arrival rate by 10 percent and also increasing the service rate by 10 percent will result in a(n):

Accepted Answer

A)  increase in the utilization of the server. 
B)  increase in the average number of customers in the system. 
C)  decrease in the average time spent in the system, including service. 
D)  increase in the waiting-line time. 
A)  increase in the utilization of the server. 
B)  increase in the average number of customers in the system. 
C)  decrease in the average time spent in the system, including service. 
D)  increase in the waiting-line time.

Question 5

Scenario B.4
Customers arrive at an airline ticket counter at the rate of 50 customers per hour, according to a Poisson distribution. There are three ticket agents. Customers select the first available agent from one line. Each agent can process 20 customers per hour with exponential service times.
-Use the information in Scenario B.4. What is the average number of customers waiting in line for service?

Accepted Answer

A)  fewer than or equal to 4.0 
B)  greater than 4.0 but fewer than or equal to 4.5 
C)  greater than 4.5 but fewer than or equal to 5.0 
D)  greater than 5.0 
A)  fewer than or equal to 4.0 
B)  greater than 4.0 but fewer than or equal to 4.5 
C)  greater than 4.5 but fewer than or equal to 5.0 
D)  greater than 5.0

Question 6

A customer support call center grades their employees on how quickly they resolve customer problems (average call time) and how many times the customer request escalates to the point that a supervisor must be summoned to resolve the dispute. What might an employee do to perform well on these metrics without actually providing good customer service? What could management do to prevent such behaviors?

Accepted Answer

Answers will vary, but two common tactic

Question 7

A phase represents a single step in providing a service.

Accepted Answer

A) True 
 B)False

Question 8

In a waiting-line problem, assigning additional employees to a service facility will have a direct effect on:

Accepted Answer

A)  the line arrangement. 
B)  service rates. 
C)  the size of the customer population. 
D)  the number of service phases. 
A)  the line arrangement. 
B)  service rates. 
C)  the size of the customer population. 
D)  the number of service phases.

Question 9

The best example of a finite customer population is the:

Accepted Answer

A)  car-buying public of an automotive manufacturer. 
B)  constituents in a precinct lining up to vote. 
C)  e-mail messages arriving at a major ISP mail server. 
D)  members of the Management department at your university waiting to speak to the Dean about their department chairman. 
A)  car-buying public of an automotive manufacturer. 
B)  constituents in a precinct lining up to vote. 
C)  e-mail messages arriving at a major ISP mail server. 
D)  members of the Management department at your university waiting to speak to the Dean about their department chairman.

Question 10

What are priority rules? Provide examples and indicate why a manager would choose to adopt one over another.

Accepted Answer

A priority rule determines which custome

Question 11

A bank that dedicates one window for commercial account customers and one window for personal account channel has two channels.

Accepted Answer

A) True 
 B)False

Question 12

In a waiting-line problem, increasing advertising expenditures, increasing the number of promotions, or changing the price of a service is most likely to affect:

Accepted Answer

A)  customer arrival rates. 
B)  service rates. 
C)  the priority rule. 
D)  the line arrangement. 
A)  customer arrival rates. 
B)  service rates. 
C)  the priority rule. 
D)  the line arrangement.

Question 13

If you were using SimQuick to determine how opening an additional airport security inspection station would affect passenger wait times, each inspection station would be modeled in SimQuick with a:

Accepted Answer

A)  workstation. 
B)  buffer. 
C)  decision point. 
D)  entrance. 
A)  workstation. 
B)  buffer. 
C)  decision point. 
D)  entrance.

Question 14

Twelve customers arrive at the lunch counter at George's Happy Hog per hour and select the hickory smoked meat du jour along with a side and soda for $5. The server doubles as the cashier and can take and fill an order in three minutes on average. What is the likelihood that there are zero customers in the system at the George's Happy Hog if the times can be assumed as exponentially distributed?

Accepted Answer

A)  0.40 
B)  0.25 
C)  0.19 
D)  0.81 
A)  0.40 
B)  0.25 
C)  0.19 
D)  0.81

Question 15

A homemade-ice cream shop owner has noticed that, often, potential customers will stop outside the store, assess the wait in line, and then pass by. The shop has a(n):

Accepted Answer

A)  infinite customer population with balking customers. 
B)  infinite customer population with reneging customers. 
C)  finite customer population with balking customers. 
D)  finite customer population with reneging customers. 
A)  infinite customer population with balking customers. 
B)  infinite customer population with reneging customers. 
C)  finite customer population with balking customers. 
D)  finite customer population with reneging customers.

Question 16

With a single-server model, increasing the service rate while holding all other factors constant will:

Accepted Answer

A)  increase the utilization of the server. 
B)  increase the time spent per customer. 
C)  decrease the probability that there are two customers in the system at any time. 
D)  decrease the arrival rate of customers. 
A)  increase the utilization of the server. 
B)  increase the time spent per customer. 
C)  decrease the probability that there are two customers in the system at any time. 
D)  decrease the arrival rate of customers.

Question 17

Twelve customers arrive at the lunch counter at George's Happy Hog per hour and select the hickory smoked meat du jour along with a side and soda for $5. The server doubles as the cashier and can take and fill an order in three minutes on average. What is the likelihood that there is one customer in the system at the George's Happy Hog if the times can be assumed as exponentially distributed?

Accepted Answer

A)  0.24 
B)  0.19 
C)  0.81 
D)  0.75 
A)  0.24 
B)  0.19 
C)  0.81 
D)  0.75

Question 18

Customer waiting times for a call center are extremely long. Two possible explanations for this phenomenon are low ________ or low ________.

Accepted Answer

server eff

Question 19

Scenario B.6
The Jackson Machine Company has four cutting tools that need to be refurbished after an average of 30 hours, according to an exponential distribution. The single machine that refurbishes the tools needs 15 hours for each tool on the average, with exponential service times.
-Use the information in Scenario B.6. What is the average waiting time of tools in line?

Accepted Answer

A)  fewer than or equal to 15 hours 
B)  greater than 15 hours but fewer than or equal to 25 hours 
C)  greater than 25 hours but fewer than or equal to 35 hours 
D)  greater than 35 hours 
A)  fewer than or equal to 15 hours 
B)  greater than 15 hours but fewer than or equal to 25 hours 
C)  greater than 25 hours but fewer than or equal to 35 hours 
D)  greater than 35 hours

Question 20

With a single-server model, increasing the arrival rate by 10 percent and also increasing the service rate by 10 percent will result in:

Accepted Answer

A)  no change in the probability that there are n customers in the system. 
B)  a decrease in the average waiting time in line. 
C)  an increase in the average time spent in the system, including service. 
D)  an increase in the average number of customers in the system. 
A)  no change in the probability that there are n customers in the system. 
B)  a decrease in the average waiting time in line. 
C)  an increase in the average time spent in the system, including service. 
D)  an increase in the average number of customers in the system.

The ________ distribution specifies the probability that n customers will arrive in T time periods.

The standard assumption in the single-server model is that there is an infinite number of customers and that customers will wait in line as long as it takes to get served.

With a single-server model, increasing the arrival rate by 10 percent and also increasing the service rate by 10 percent will result in a(n):

A phase represents a single step in providing a service.

In a waiting-line problem, assigning additional employees to a service facility will have a direct effect on:

The best example of a finite customer population is the:

What are priority rules? Provide examples and indicate why a manager would choose to adopt one over another.

A bank that dedicates one window for commercial account customers and one window for personal account channel has two channels.

In a waiting-line problem, increasing advertising expenditures, increasing the number of promotions, or changing the price of a service is most likely to affect:

If you were using SimQuick to determine how opening an additional airport security inspection station would affect passenger wait times, each inspection station would be modeled in SimQuick with a:

A homemade-ice cream shop owner has noticed that, often, potential customers will stop outside the store, assess the wait in line, and then pass by. The shop has a(n):

With a single-server model, increasing the service rate while holding all other factors constant will:

Customer waiting times for a call center are extremely long. Two possible explanations for this phenomenon are low or low .

With a single-server model, increasing the arrival rate by 10 percent and also increasing the service rate by 10 percent will result in:

Using Operations to Create Value

Process Strategy and Analysis

Quality and Performance

Capacity Planning

Constraint Management

Lean Systems

Project Management

Forecasting

Inventory Management

Operations Planning and Scheduling

Resource Planning

Supply Chain Design

Supply Chain Logistic Networks

Supply Chain Integration

Supply Chain Sustainability

Supplement A Decision Making

Supplement J Operations Scheduling

Supplement K Layout

Supplement C Special Inventory Models

Supplement D Linear Programming

Supplement E Simulation

Supplement F Financial Analysis

Supplement G Acceptance Sampling Plans

Supplement H Measuring Output Rates

Supplement I Learning Curve Analysis

Filters

Exam 19: Supplement B Waiting Lines

The ________ distribution specifies the probability that n customers will arrive in T time periods.

The standard assumption in the single-server model is that there is an infinite number of customers and that customers will wait in line as long as it takes to get served.

With a single-server model, increasing the arrival rate by 10 percent and also increasing the service rate by 10 percent will result in a(n):

A phase represents a single step in providing a service.

In a waiting-line problem, assigning additional employees to a service facility will have a direct effect on:

The best example of a finite customer population is the:

What are priority rules? Provide examples and indicate why a manager would choose to adopt one over another.

A bank that dedicates one window for commercial account customers and one window for personal account channel has two channels.

In a waiting-line problem, increasing advertising expenditures, increasing the number of promotions, or changing the price of a service is most likely to affect:

If you were using SimQuick to determine how opening an additional airport security inspection station would affect passenger wait times, each inspection station would be modeled in SimQuick with a:

A homemade-ice cream shop owner has noticed that, often, potential customers will stop outside the store, assess the wait in line, and then pass by. The shop has a(n):

With a single-server model, increasing the service rate while holding all other factors constant will:

Customer waiting times for a call center are extremely long. Two possible explanations for this phenomenon are low ________ or low ________.

With a single-server model, increasing the arrival rate by 10 percent and also increasing the service rate by 10 percent will result in:

Using Operations to Create Value

Process Strategy and Analysis

Quality and Performance

Capacity Planning

Constraint Management

Lean Systems

Project Management

Forecasting

Inventory Management

Operations Planning and Scheduling

Resource Planning

Supply Chain Design

Supply Chain Logistic Networks

Supply Chain Integration

Supply Chain Sustainability

Supplement A Decision Making

Supplement J Operations Scheduling

Supplement K Layout

Supplement C Special Inventory Models

Supplement D Linear Programming

Supplement E Simulation

Supplement F Financial Analysis

Supplement G Acceptance Sampling Plans

Supplement H Measuring Output Rates

Supplement I Learning Curve Analysis

Filters

Customer waiting times for a call center are extremely long. Two possible explanations for this phenomenon are low or low .