Exam 8: Decision Making and Business Intelligence

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An OLAP report has

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OLAP provides the ability to sum,count,average,and perform other simple arithmetic operations on groups of data.

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With cluster analysis,analysts create a model or hypothesis before running the analysis.

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Billy Beane is generally credited with introducing

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________ systems integrate data from a variety of sources,process that data,and produce and deliver formatted reports to users.

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Clickstream data is often ___________ and much of it has to be discarded.

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Experts in a communications company believe that cell phone usage on weekends is determined by the age of the customer and the number of months the customer has the cell phone account.Which of the following technique could be used to analyze the data?

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Discovering patterns and relationships in data is the purpose of data mining.

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Operational data may not be suitable for more sophisticated analyses.What are the problems with operational data? What is a data warehouse and how is it designed to go beyond these issues?

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A data warehouse contains a special database that stores the ________,which records its source,history,and format of the data.

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Using specific examples,describe data granularity.

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________ create value from intellectual capital by collecting and sharing human knowledge of products,product uses,best practices,and other critical knowledge with employees,managers,customers,suppliers,and other who need it.

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With supervised data mining,data miners develop a model prior to the analysis and apply statistical techniques to data to estimate parameters of the model.

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A data mart is a data collection that is created to address the needs of a particular business function,problem,or opportunity.

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Neural networks are a supervised data-mining technique.

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Data-mining techniques include

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The hyper abundance of information is sometimes called

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To realize a competitive advantage from data an organization must

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

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When an area code changes in a database,the phone number for a given customer before the change will not match the customer's number after the change.This is an example of

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