MSIS 4263 External Quiz 2

________ charts are useful in displaying nominal data or numerical data that splits nicely into different categories so you can quickly see comparative results and trends.

Bar

Interval data are variables that can be measured on interval scales.

True

One of SiriusXM's challenges was tracking potential customers when cars were sold.

True

When validating the assumptions of a regression, ________ assumes that the errors of the response variable are normally distributed.

normality

Dashboards present visual displays of important information that are consolidated and arranged on a single ________.

screen

Dashboards can be presented at all the following levels EXCEPT

the visual cube level

Contextual metadata for a dashboard includes all the following EXCEPT

which operating system is running the dashboard server software

This technique makes no a priori assumption of whether one variable is dependent on the other(s) and is not concerned with the relationship between variables; instead it gives an estimate on the degree of association between the variables.

correlation

When validating the assumptions of a regression, ________ assumes that the relationship between the response variable and the explanatory variables are linear.

linearity

Which of the following developments is NOT contributing to facilitating growth of decision support and analytics?

locally concentrated workforces

The Internet emerged as a new medium for visualization and brought all the following EXCEPT

new forms of computation of business logic.

What is the management feature of a dashboard?

operational data that identify what actions to take to resolve a problem

Which type of visualization tool can be very helpful when the intention is to show relative proportions of dollars per department allocated by a university administration?

pie chart

Data source reliability means that data are correct and are a good match for the analytics problem.

False

In the Dallas Cowboys case study, the focus was on using data analytics to decide which players would play every week.

False

Nominal data represent the labels of multiple classes used to divide a variable into specific groups.

False

The data storage component of a business reporting system builds the various reports and hosts them for, or disseminates them to users. It also provides notification, annotation, collaboration, and other services.

False

________ statistics is about drawing conclusions about the characteristics of the population.

Inferential

________ regression is a very popular, statistically sound, probability-based classification algorithm that employs supervised learning.

Logistic

Descriptive statistics is all about describing the sample data on hand.

True

Google Maps has set new standards for data visualization with its intuitive Web mapping software.

True

Predictive algorithms generally require a flat file with a target variable, so making data analytics ready for prediction means that data sets must be transformed into a flat-file format and made ready for ingestion into those predictive algorithms.

True

Data is the main ingredient for any BI, data science, and business analytics initiative.

True

Benefits of the latest visual analytics tools, such as SAS Visual Analytics, include all of the following EXCEPT

they explore massive amounts of data in hours, not days

Data is the contextualization of information, that is, information set in context.

False

Which of the following is LEAST related to data/information visualization?

graphic artwork

Dashboards provide visual displays of important information that is consolidated and arranged across several screens to maintain data order.

False

When you tell a story in a presentation, all of the following are true EXCEPT

a well-told story should have no need for subsequent discussion.

This measure of central tendency is the sum of all the values/observations divided by the number of observations in the data set.

arithmetic mean

What is the fundamental challenge of dashboard design?

ensuring that the required information is shown clearly on a single screen

Which type of visualization tool can be very helpful when a data set contains location data?

geographic map