Question 1

________ analysis that identifies groups of entities with similar characteristics is a common unsupervised data-mining technique.

Accepted Answer

The answer of ________ analysis that identifies groups of entities...

Question 2

Data-mining is about probabilities, not certainties. So sometimes a good model may look bad because of a string of bad luck.

Accepted Answer

A) True 
 B)False

Question 3

For developing BI applications, it is generally better to have too ________ a granularity rather than too coarse.

Accepted Answer

The answer of For developing BI applications, it is generally...

Question 4

Coarse data are highly summarized.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is an assumption about information systems that Ackoff disputed?

Accepted Answer

A)  Computer speed doubles every 18 months. 
B)  There is too much uncertainty in making any decision. 
C)  Managers have no problem making decisions if they get the data they need. 
D)  Managers that make decisions do not get irrelevant data. 
E)  There is too much information. 
A)  Computer speed doubles every 18 months. 
B)  There is too much uncertainty in making any decision. 
C)  Managers have no problem making decisions if they get the data they need. 
D)  Managers that make decisions do not get irrelevant data. 
E)  There is too much information.

Question 6

The data processing strategy that waits for many transactions to pile up before they are processed is called

Accepted Answer

A)  LDAP. 
B)  delayed processing. 
C)  batch processing. 
D)  OLTP. 
E)  OLAP. 
A)  LDAP. 
B)  delayed processing. 
C)  batch processing. 
D)  OLTP. 
E)  OLAP.

Question 7

Generally it is better to have data that is too fine rather than too coarse.

Accepted Answer

A) True 
 B)False

Question 8

A data-mining system uses statistical analysis to enable fundraisers to predict who will donate to a cause.

Accepted Answer

A) True 
 B)False

Question 9

Market-basket analysis is a data-mining system, which computes correlations based on past orders to determine items that are frequently purchased together.

Accepted Answer

A) True 
 B)False

Question 10

An OLAP report has

Accepted Answer

A)  measures and dimensions. 
B)  averages. 
C)  dimensions. 
D)  measures and averages. 
E)  measures. 
A)  measures and dimensions. 
B)  averages. 
C)  dimensions. 
D)  measures and averages. 
E)  measures.

Question 11

________ systems are the backbone of all functional, cross-functional, and inter-organizational systems in an organization.

Accepted Answer

A)  OLAP 
B)  Batch processing 
C)  OLTP 
D)  LDAP 
E)  Real time 
A)  OLAP 
B)  Batch processing 
C)  OLTP 
D)  LDAP 
E)  Real time

Question 12

________ integrate data from multiple sources, and they process those data by sorting, grouping, summing, averaging, and comparing.

Accepted Answer

The answer of ________ integrate data from multiple sources, and...

Question 13

What are the three assumptions that Ackoff disagreed with?

Accepted Answer

One of the erroneous assumptions was tha

Question 14

Expert systems encapsulate knowledge and use if/then rules to support decisions.

Accepted Answer

A) True 
 B)False

Question 15

It is better to have data that is too fine than too coarse because fine data can be converted to coarse data by

Accepted Answer

A)  separating the data into its constituent parts. 
B)  using regression analysis. 
C)  placing the data into a data mart. 
D)  summing and combining the data. 
E)  placing the data into a data warehouse. 
A)  separating the data into its constituent parts. 
B)  using regression analysis. 
C)  placing the data into a data mart. 
D)  summing and combining the data. 
E)  placing the data into a data warehouse.

Question 16

If transactions are entered and processed immediately upon entry, then the system is operating in

Accepted Answer

A)  transaction time. 
B)  batch mode. 
C)  unprotected mode. 
D)  online mode. 
E)  real time. 
A)  transaction time. 
B)  batch mode. 
C)  unprotected mode. 
D)  online mode. 
E)  real time.

Question 17

________ is the application of statistical techniques to find patterns and relationships among data and to classify and predict.

Accepted Answer

The answer of ________ is the application of statistical techniques...

Question 18

Which of the following is an assumption about information systems that Ackoff disputed?

Accepted Answer

A)  There is too much uncertainty in making any decision. 
B)  Decisions are poor because managers lack relevant information. 
C)  Computer speed doubles every 18 months. 
D)  There is too much information. 
E)  Mangers suffer from a lack of perfect data. 
A)  There is too much uncertainty in making any decision. 
B)  Decisions are poor because managers lack relevant information. 
C)  Computer speed doubles every 18 months. 
D)  There is too much information. 
E)  Mangers suffer from a lack of perfect data.

Question 19

Systems that focus on making data collected in OLTP to support decision making are often referred to as expert systems.

Accepted Answer

A) True 
 B)False

Question 20

What is supervised data mining?

Accepted Answer

In supervised data mining, data miners d

________ analysis that identifies groups of entities with similar characteristics is a common unsupervised data-mining technique.

Data-mining is about probabilities, not certainties. So sometimes a good model may look bad because of a string of bad luck.

For developing BI applications, it is generally better to have too ________ a granularity rather than too coarse.

Coarse data are highly summarized.

Which of the following is an assumption about information systems that Ackoff disputed?

The data processing strategy that waits for many transactions to pile up before they are processed is called

Generally it is better to have data that is too fine rather than too coarse.

A data-mining system uses statistical analysis to enable fundraisers to predict who will donate to a cause.

Market-basket analysis is a data-mining system, which computes correlations based on past orders to determine items that are frequently purchased together.

An OLAP report has

________ systems are the backbone of all functional, cross-functional, and inter-organizational systems in an organization.

________ integrate data from multiple sources, and they process those data by sorting, grouping, summing, averaging, and comparing.

What are the three assumptions that Ackoff disagreed with?

Expert systems encapsulate knowledge and use if/then rules to support decisions.

It is better to have data that is too fine than too coarse because fine data can be converted to coarse data by

If transactions are entered and processed immediately upon entry, then the system is operating in

________ is the application of statistical techniques to find patterns and relationships among data and to classify and predict.

Which of the following is an assumption about information systems that Ackoff disputed?

Systems that focus on making data collected in OLTP to support decision making are often referred to as expert systems.

What is supervised data mining?

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Productivity, Innovation, and Strategy

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Hardware and Software

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Exam 12: Decision Making and Business Intelligence

________ analysis that identifies groups of entities with similar characteristics is a common unsupervised data-mining technique.

Data-mining is about probabilities, not certainties. So sometimes a good model may look bad because of a string of bad luck.

For developing BI applications, it is generally better to have too ________ a granularity rather than too coarse.

Coarse data are highly summarized.

Which of the following is an assumption about information systems that Ackoff disputed?

The data processing strategy that waits for many transactions to pile up before they are processed is called

Generally it is better to have data that is too fine rather than too coarse.

A data-mining system uses statistical analysis to enable fundraisers to predict who will donate to a cause.

Market-basket analysis is a data-mining system, which computes correlations based on past orders to determine items that are frequently purchased together.

An OLAP report has

________ systems are the backbone of all functional, cross-functional, and inter-organizational systems in an organization.

________ integrate data from multiple sources, and they process those data by sorting, grouping, summing, averaging, and comparing.

What are the three assumptions that Ackoff disagreed with?

Expert systems encapsulate knowledge and use if/then rules to support decisions.

It is better to have data that is too fine than too coarse because fine data can be converted to coarse data by

If transactions are entered and processed immediately upon entry, then the system is operating in

________ is the application of statistical techniques to find patterns and relationships among data and to classify and predict.

Which of the following is an assumption about information systems that Ackoff disputed?

Systems that focus on making data collected in OLTP to support decision making are often referred to as expert systems.

What is supervised data mining?

Information Systems and You

Business Processes and Decision Making

Application Extension-Introduction to Business Process Modeling With Microsoft Visio

Productivity, Innovation, and Strategy

Application Extension-Introduction to Microsoft Excel 2013

Hardware and Software

Database and Content Management

Extension-Using Microsoft Access 2013

Extension-Database Design

Networks and Collaboration

Competitive Advantage and Business Processes

E-commerce, Social Networking, and Web 20

Acquiring Information Systems Through Projects

Application Extension-Introduction to Microsoft Project

Structure, Governance, and Ethics

Managing Information Security and Privacy

Filters