Exam 17: Business Analytics

You can compute any of the numerical descriptive statistics for the variables of the new worksheet that a drill-down in a PivotTable creates.

In multidimensional scaling,the stress statistic is used to measure the goodness of fit of the results to the data.

Successful implementation of a classification tree requires rules for splitting the data at each node based on a dependent variable.

Which of the following explores business activities that have occurred or are occurring in the present moment?

SCENARIO 17-6 The neural network output 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 thousands)spent on TV advertising and the number of times (10,15,20,25,30 or 35)a day the advertisement appear on TV. -Referring to Scenario 17-6,what is the r-square of model for the validating data?

SCENARIO 17-7 The output below shows the results of cluster analysis on the different regions of the world (North America,Asia Pacific,Western Europe,Central & Eastern Europe,Latin America,and Middle East & Africa)based on the amounts (in billions of US dollars)and the percentage changes from prior year of business-to-consumer ecommerce sales last year. -Referring to Scenario 17-7,Middle East & Africa is the next region that clusters with the Central & Eastern Europe and Latin America cluster.

In nonmetric multidimensional scaling,the distance between objects is ordinal scaled.

In multidimensional scaling,the general rule in to increase the number of dimensions as long as the stress statistic increases substantially.

SCENARIO 17-5 The output below shows the results of the neural network model that has been constructed to predict the probability of a cable company's customers who will switch ("Yes" or "No")into its bundled program offering based on the price ($30,$40,$50,$60)and whether the customer spends more than 5 hours a day watching TV ("Yes" or "No")using the date set of 100 customers collected from a survey. Business Analytics 17-19 -Referring to Scenario 17-5,out of the 7 customers who did switch in the validation data set,how many are correctly classified by the neural network?

In k-means clustering,observations that are assigned to a cluster may never be reassigned to a different cluster later in the process.

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. -Referring to Scenario 17-4,the highest mean weekend box office revenue is predicted to occur with at least $45 thousand spent on TV advertisement and fewer than 25 advertisement appearances a day.

Which of the following investigates what should occur and suggest the best course of action for the future?

Each observation is treated as its own cluster at the beginning in hierarchical clustering.

In multidimensional scaling,the Euclidean distance is most commonly used to measure the distance between objects.

SCENARIO 17-5 The output below shows the results of the neural network model that has been constructed to predict the probability of a cable company's customers who will switch ("Yes" or "No")into its bundled program offering based on the price ($30,$40,$50,$60)and whether the customer spends more than 5 hours a day watching TV ("Yes" or "No")using the date set of 100 customers collected from a survey. Business Analytics 17-19 -Referring to Scenario 17-5,out of the 27 customers who did not switch in the validation data set,how many are correctly classified by the neural network?

Data mining uses various techniques to extract useful information from huge depositories of data.

In a classification tree,the dependent variable is a categorical variable.

In metric multidimensional scaling,the distance between objects is ratio scaled.

Each observation is treated as its own cluster at the beginning in k-means clustering.

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. -Referring to Scenario 17-2,the Western Europe region has the largest amount of business-to-consumer ecommerce sales last year.