QBA Final Exam Questions & Answers
(Grade A+)
When a decision maker is faced with several alternatives and an
uncertain set of future events, s/he uses __________ to develop an
optimal strategy. -
correct answer ✅Decision analysis
A forecast that helps direct police officers to areas where crimes are
likely to occur based on past data is an example of -
correct answer ✅Predictive Analytics
Tactical decisions are concerned with -
correct answer ✅how the organization should achieve the goals
and objectives set by its strategy
In the spectrum of business analytics, which is the most complex? -
correct answer ✅Prescriptive
Which of the following analytical techniques helps us arrive at the
best decision? -
correct answer ✅Prescriptive
Which of the following gives the proportion of items in each bin? -
correct answer ✅Relative frequency
,QBA Final Exam Questions & Answers
(Grade A+)
The variance is based on the -
correct answer ✅deviation about the mean
Compute the IQR for the following data. -
correct answer ✅9.50
Use technology to compute the standard deviation for the following
sample data. -
correct answer ✅6.75
Scores on Ms. Nash's test have a mean of 64 and a standard
deviation of 9. Steve has a score of 52. Convert Steve's score to a z-
score. (Round to two decimal places if necessary.) -
correct answer ✅-1.33
The data dashboard for a marketing manager may have KPIs related
to -
correct answer ✅Current sales measures and sales by region
, QBA Final Exam Questions & Answers
(Grade A+)
A line chart that has no axes but is used to provide information on
overall trends for time series data is called a -
correct answer ✅Sparkline
Bar charts use -
correct answer ✅horizontal bars to display the magnitude of the
quantitative variable.
Tables should be used instead of charts when -
correct answer ✅the values being displayed have different units or
very different magnitudes
A disadvantage of stacked - column charts and stacked- bar charts is
that -
correct answer ✅it can be difficult to perceive small differences in
areas.
__________ is a method of calculating dissimilarity between
clusters by calculating the distance between the centroids of the
two clusters. -
correct answer ✅Centroid Linkage
(Grade A+)
When a decision maker is faced with several alternatives and an
uncertain set of future events, s/he uses __________ to develop an
optimal strategy. -
correct answer ✅Decision analysis
A forecast that helps direct police officers to areas where crimes are
likely to occur based on past data is an example of -
correct answer ✅Predictive Analytics
Tactical decisions are concerned with -
correct answer ✅how the organization should achieve the goals
and objectives set by its strategy
In the spectrum of business analytics, which is the most complex? -
correct answer ✅Prescriptive
Which of the following analytical techniques helps us arrive at the
best decision? -
correct answer ✅Prescriptive
Which of the following gives the proportion of items in each bin? -
correct answer ✅Relative frequency
,QBA Final Exam Questions & Answers
(Grade A+)
The variance is based on the -
correct answer ✅deviation about the mean
Compute the IQR for the following data. -
correct answer ✅9.50
Use technology to compute the standard deviation for the following
sample data. -
correct answer ✅6.75
Scores on Ms. Nash's test have a mean of 64 and a standard
deviation of 9. Steve has a score of 52. Convert Steve's score to a z-
score. (Round to two decimal places if necessary.) -
correct answer ✅-1.33
The data dashboard for a marketing manager may have KPIs related
to -
correct answer ✅Current sales measures and sales by region
, QBA Final Exam Questions & Answers
(Grade A+)
A line chart that has no axes but is used to provide information on
overall trends for time series data is called a -
correct answer ✅Sparkline
Bar charts use -
correct answer ✅horizontal bars to display the magnitude of the
quantitative variable.
Tables should be used instead of charts when -
correct answer ✅the values being displayed have different units or
very different magnitudes
A disadvantage of stacked - column charts and stacked- bar charts is
that -
correct answer ✅it can be difficult to perceive small differences in
areas.
__________ is a method of calculating dissimilarity between
clusters by calculating the distance between the centroids of the
two clusters. -
correct answer ✅Centroid Linkage
