Exam 17: Business Analytics

Dashboards may contain all but which of the following?

Which of the following is NOT among the predictive analytics methods covered in the book?

True or False: Neural networks can suffer from poor quality of data, insufficient data, or overfitted models.

Which of the following disciplines is typically NOT involved in business analytics?

True or False: Data mining uses various techniques to extract useful information from huge depositories of data.

True or False: Each observation is treated as its own cluster at the beginning in hierarchical clustering.

True or False: The LogWorth statistic is used to decide when to split a node of a regression tree.

SCENARIO 17-2 The treemap below shows the amounts (size)measured in billions of US dollars and percentage changes from prior year (color)of business-to-consumer ecommerce sales last year for North America, Asia Pacific, Western Europe, Central & Eastern Europe, Latin America, and Middle East & Africa. -True or False: Referring to Scenario 17-2, the Western Europe region has the largest amount of business-to-consumer ecommerce sales last year.

SCENARIO 17-1 -True or False: Referring to Scenario 17-1, the sparklines enable you to predict that the rates of return of the stock market in 2014 will be higher than in 2013.

True or False: Double-clicking a cell in a PivotTable causes Excel to drill down and display the underlying data in a new worksheet.

True or False: In multidimensional scaling, the stress statistic is used to measure the distance between objects.

True or False: Successful implementation of a classification tree requires rules for splitting the data at each node based on an independent variable.

True or False: The Akaike information criteria (AIC)or the corrected Akaike information criteria (AICc)can be used to compare alternative models chosen by the classification tree.

Which of the following is NOT among the predictive analytics methods covered in the book?

True or False: The Akaike information criteria (AIC)or the corrected Akaike information criteria (AICc)is a measure of the probability that can be attributed to the response that has occurred.

True or False: Some business analytics involve starting with many variables, followed by filtering the data by exploring specific combinations of categorical values or numerical range.In Excel, this approach is mimicked by using a drill-down.

True or False: Multilayer perceptrons usually contain an input layer, a hidden layer and an output layer.

SCENARIO 17-2 The treemap below shows the amounts (size)measured in billions of US dollars and percentage changes from prior year (color)of business-to-consumer ecommerce sales last year for North America, Asia Pacific, Western Europe, Central & Eastern Europe, Latin America, and Middle East & Africa. -True or False: Referring to Scenario 17-2, the Asia Pacific region has the largest amount of business-to-consumer ecommerce sales last year.

SCENARIO 17-4 The regression tree below was obtained for predicting the weekend box office revenue of a newly released movie (in thousands of dollars)based on data collected in different cities on the expenditure (at $25, $30, $35, $40, $45, $50, $55, $60, $65 or $70 thousand)spent on TV advertising and the number of times (10, 15, 20, 25, 30 or 35)a day the advertisement appear on TV. Business Analytics 17-15 -Referring to Scenario 17-4, how many cities were used in generating the regression tree?

SCENARIO 17-1 -Referring to Scenario 17-1, the rates of return of stock ____ have the smallest variation among the Three.