Deck 3: Nature of Data, Statistical Modeling, and Visualization

Question 1

It is possible to perform analytics without data.

Answer 1

False

Question 2

Nominal data refers to measurements.

Answer 2

False

Question 3

Data preprocessing is generally simple, straightforward, and quick.

Answer 3

False

Question 4

The OLAP branch of descriptive analytics has also been called business intelligence.

Question 5

Data visualization is closely related to the fields of DW management and MIS application development.

Question 6

Some charts or graphs are better at answering certain types of questions.

Question 7

According to Eckerson the most distinctive feature of a dashboard is its three layers of information.

Question 8

An ideal dashboard would not be transparent to the user.

Question 9

To satisfy this requirement, this data is recorded at or near the time of the event or observation so that the time delay-related misrepresentation is minimized.

A) data source reliability
B) data accessibility
C) data granularity
D) data currency

Question 10

These contain codes assigned to objects or events as labels that also represent the rank order among them.

A) numeric data
B) ordinal data
C) interval data
D) nominal data

Question 11

These contain measurements of simple codes assigned to objects as labels, which are not measurements.

A) numeric data
B) ordinal data
C) interval data
D) nominal data

Question 12

Reducing a data set's volume can be a portion of which data preprocessing step?

A) Data Consolidation
B) Data Cleaning
C) Data Transformation
D) Data Reduction

Question 13

This assumption in a regression analysis states that the explanatory variables are not correlated.

A) linearity
B) multicollinearity
C) independence
D) normality

Question 14

This assumption in a regression analysis states that the relationship between the response variable and the explanatory variables is linear.

A) linearity
B) multicollinearity
C) independence
D) normality

Question 15

This type of report may include color-coded traffic lights for different performance levels.

A) metric management report
B) dashboard report
C) balanced scorecard report
D) none of these

Question 16

The predecessors to data visualization date back to:

A) second century AD.
B) 1600's.
C) 1800's.
D) 1990's.

Question 17

What made the digital distribution of both data and visualization more accessible to a broader audience?

A) the printing press
B) the pony express
C) personal computers
D) the Internet

Question 18

This figure is often used to explore the relationship between two or three variables (in 2D or 3D visuals).

A) line chart
B) bar chart
C) pie chart
D) scatter plot

Question 19

Which of the following is not a best practice in dashboard design?

A) validate the dashboard design by a usability specialist
B) disregard guided analytics in lieu of a detailed manual
C) present information in three different levels
D) enrich the dashboard with business-user comments

Question 20

This layer of dashboard information provides summarized dimensional data.

A) monitoring
B) analysis
C) management
D) export

Question 21

Automated data collection systems are not only enabling businesses to collect more volumes of data but also enhancing the data quality and ________.

Question 22

________ data include measurement variables commonly found in the physical sciences and engineering.

Question 23

Data are ________ between a certain minimum and maximum for all variables to mitigate the potential bias.

Question 24

________ is collection of mathematical techniques to characterize and interpret data.

Question 25

________ makes no a priori assumption of whether one variable is dependent on the other(s) and is not concerned with the relationship between variables.

Question 26

________ are typically enterprise-wide agreed upon targets to be tracked against over a period of time.

Question 27

Key to any successful report are ________, brevity, completeness, and correctness.

Question 28

________ has also single-handedly democratized both the interface conventions and the technology for displaying interactive geography online

Question 29

The ________ chart is often an enhanced version of scatter plots.

Question 30

When presenting your data analysis it is often helpful to view your analysis as a data rich ________.

Question 31

An ideal dashboard requires little, if any, customized ________ to implement, deploy, and maintain.

Question 32

List and briefly define the central tendency measures of descriptive statistics.

Question 33

How can you determine if a regression model is good enough?