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?
3.00
sigma/sqrt=12/sqrt(16)=12/4=3
The WPC Sports Company has noted that the size of individual "customer order" is
normally distributed with a mean of $100 and standard deviation of $12. If a soccer
team of 16 players were to make the next batch of orders, what would be the standard
error of the mean?
Anonymously data collection by hiding ASU brand in the survey question.
You are collecting data via an online survey to improve education standard at ASU.
Which of the following methods will not result in data collection bias?
The t-distribution has a larger variance than the standard normal distribution
Which of the following is a difference between the t-distribution and the standard normal
(z) distribution?
The time to complete a specific task
Which of the following is a continuous random variable?
alpha
In order to reject the null hypothesis, the p-value must be less than the
independent variable
A market analyst is developing a regression model to predict monthly household
expenditures on groceries as a function of family size, household income, and
household neighborhood (urban, suburban, and rural). The "neighborhood" variable in
this model is ________.
A unit point change in reading label will increase IQ by 5.6 point.
Which of the following statement is true based on the following regression equation?IQ
= 4.0 + Reading Label * 5.6
There will be a multi-collinearity effect.
Which of the following assumptions is not true for multiple linear regression?
$6900
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?
3.00
sigma/sqrt=12/sqrt(16)=12/4=3
The WPC Sports Company has noted that the size of individual "customer order" is
normally distributed with a mean of $100 and standard deviation of $12. If a soccer
team of 16 players were to make the next batch of orders, what would be the standard
error of the mean?
Anonymously data collection by hiding ASU brand in the survey question.
You are collecting data via an online survey to improve education standard at ASU.
Which of the following methods will not result in data collection bias?
The t-distribution has a larger variance than the standard normal distribution
Which of the following is a difference between the t-distribution and the standard normal
(z) distribution?
The time to complete a specific task
Which of the following is a continuous random variable?
alpha
In order to reject the null hypothesis, the p-value must be less than the
independent variable
A market analyst is developing a regression model to predict monthly household
expenditures on groceries as a function of family size, household income, and
household neighborhood (urban, suburban, and rural). The "neighborhood" variable in
this model is ________.
A unit point change in reading label will increase IQ by 5.6 point.
Which of the following statement is true based on the following regression equation?IQ
= 4.0 + Reading Label * 5.6
There will be a multi-collinearity effect.
Which of the following assumptions is not true for multiple linear regression?
$6900
