WPC 300 Final Exam 2023 Questions and Answers
Complete
perform business discovery
In an agile approach of analytics what is the first step of the process?
data warehouse
In an ETL process, data is loaded into a final target database such as:
prescriptive analytics
Which of the following data analysis models use optimization techniques?
Prescriptive Analytics
Predictive analytics may be applied to __________, which is a set of techniques that use
descriptive data and forecasts to identify the decisions most likely to result in the best
performance.
descriptive analytics
Target is examining their online sales data during the pandemic to understand what happened.
Which kind of analytical technique are they using?
predictive analytics
Costco wants to know how to stock their warehouses for a future pandemic and are using current
sales data to help them project the needs. Which kind of analytical technique are they using?
prescriptive analytics
Your professor is considering purchasing a self-driving car that can figure out the best route and
the optimum safe way to drive there without human intervention. What kind of analytics is the
car using to do this?
Who will win the NBA championship?
How many students will enroll for an online class in the Spring?
What is the purchase pattern(s) of our customers?
Which of the following question(s) can be better answered using data in order to reach an
evidence-based conclusion?
Data ink can sometimes help tell a richer story
, Which of the following statement(s) about charts is true?
The data-ink ratio should be higher than 1
Which of the following violates the principle of data visualization?
close to 1
In for a chart to minimize graphical complexity, the data-ink ratio must be:
Tables cannot easily show trends
Which of the following statements is a reason not to use a table for data visualization?
the size of the effect shown in the graph is bigger than the actual effect in the data.
When the lie-factor of a graphical chart is more than 1,
Increases the data-ink ratio
Deleting the grid lines in a chart
Plots data using a circular historical plot
What best describes the nature of a rose diagram?
close to 1
In order for a chart to have graphical integrity, the lie factor must be:
Which of the following statement(s) about charts is true?
A chart should have graphical integrity
A chart should minimize graphical complexity
A chart should tell a story
The graph suggests a possible true effect
Which are useful principles for data visualization?
distribution of the sample mean will still be normal when the sample size is large
The central limit theorem states that even if the population is not normally distributed, the
The null hypothesis is actually true, but the hypothesis test incorrectly rejects it.
Which of the following is a Type-I error?
Confidence interval decreases
When sample size increases
Null hypothesis
Which of the following proposition describes an existing theory or belief?
.930
What is the confidence level when the level of significance is 0.07?
Complete
perform business discovery
In an agile approach of analytics what is the first step of the process?
data warehouse
In an ETL process, data is loaded into a final target database such as:
prescriptive analytics
Which of the following data analysis models use optimization techniques?
Prescriptive Analytics
Predictive analytics may be applied to __________, which is a set of techniques that use
descriptive data and forecasts to identify the decisions most likely to result in the best
performance.
descriptive analytics
Target is examining their online sales data during the pandemic to understand what happened.
Which kind of analytical technique are they using?
predictive analytics
Costco wants to know how to stock their warehouses for a future pandemic and are using current
sales data to help them project the needs. Which kind of analytical technique are they using?
prescriptive analytics
Your professor is considering purchasing a self-driving car that can figure out the best route and
the optimum safe way to drive there without human intervention. What kind of analytics is the
car using to do this?
Who will win the NBA championship?
How many students will enroll for an online class in the Spring?
What is the purchase pattern(s) of our customers?
Which of the following question(s) can be better answered using data in order to reach an
evidence-based conclusion?
Data ink can sometimes help tell a richer story
, Which of the following statement(s) about charts is true?
The data-ink ratio should be higher than 1
Which of the following violates the principle of data visualization?
close to 1
In for a chart to minimize graphical complexity, the data-ink ratio must be:
Tables cannot easily show trends
Which of the following statements is a reason not to use a table for data visualization?
the size of the effect shown in the graph is bigger than the actual effect in the data.
When the lie-factor of a graphical chart is more than 1,
Increases the data-ink ratio
Deleting the grid lines in a chart
Plots data using a circular historical plot
What best describes the nature of a rose diagram?
close to 1
In order for a chart to have graphical integrity, the lie factor must be:
Which of the following statement(s) about charts is true?
A chart should have graphical integrity
A chart should minimize graphical complexity
A chart should tell a story
The graph suggests a possible true effect
Which are useful principles for data visualization?
distribution of the sample mean will still be normal when the sample size is large
The central limit theorem states that even if the population is not normally distributed, the
The null hypothesis is actually true, but the hypothesis test incorrectly rejects it.
Which of the following is a Type-I error?
Confidence interval decreases
When sample size increases
Null hypothesis
Which of the following proposition describes an existing theory or belief?
.930
What is the confidence level when the level of significance is 0.07?
