D491 for Post Assessment questions with |\ |\ |\ |\ |\ |\
answers
What are the top-selling products in each location?
|\ |\ |\ |\ |\ |\ |\
A retail company collects data on its sales for the last quarter. The data
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
includes information on the sale of the products sold, the price, the quantity,
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
and the sale location.
|\ |\ |\ |\ |\
Which type of question can the data analytics project answer based on the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
available data? |\
Sales data categorized by product
|\ |\ |\ |\
A business seeks to increase profitability and optimize inventory
|\ |\ |\ |\ |\ |\ |\ |\ |\
management. They decide to carry out data analytics research to determine|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
which merchandise is selling quickly and which is selling slowly. The
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
research seeks to determine whether there is a relationship between the kind
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
of merchandise and sales velocity. Which data is required to answer the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
question for the data analytics project in the scenario?
|\ |\ |\ |\ |\ |\ |\ |\
Patient feedback survey results|\ |\ |\
A healthcare provider aims to improve patient satisfaction and retention.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
They seek to answer the question, "What factors are associated with patient
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
satisfaction?" Which data is required to answer this question in the scenario?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Customer device usage data |\ |\ |\
A financial institution is seeking to reduce the risk of fraudulent
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
transactions. The institution has customer data that includes account
|\ |\ |\ |\ |\ |\ |\ |\ |\
information, transaction history, demographics, and device usage. The data
|\ |\ |\ |\ |\ |\ |\ |\ |\
analytics project aims to answer the question: "What patterns of behavior
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
,suggest a higher risk of fraudulent transactions?” Which data is required to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
meet the needs of the project and address the risk of fraudulent transactions?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
What are the most popular products among customers aged 18-25?
|\ |\ |\ |\ |\ |\ |\ |\ |\
An e-commerce company has collected various types of data about their
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
customers, products, and sales transactions. The available data includes
|\ |\ |\ |\ |\ |\ |\ |\ |\
customer demographics, product attributes, purchase history, website
|\ |\ |\ |\ |\ |\ |\
clickstream data, and customer feedback .Which question can be answered
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
using data analytics based on the available data?
|\ |\ |\ |\ |\ |\ |\
Is the data correct?
|\ |\ |\
A food delivery company would like to study economic conditions' effects on
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
sales. The analyst in charge of the project is planning on gathering
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
economic data from a well-known blog. Which question should the analyst
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
consider in the scenario? |\ |\ |\
What is the impact of the outliers on the analysis?
|\ |\ |\ |\ |\ |\ |\ |\ |\
A data analyst is planning the data preparation phase of a data analysis
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
project. During planning, they consider what to do if the data contains a lot
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
of outliers. Which question should the analyst consider in this scenario?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Linear regression model |\ |\
A pivot table is created using R programming representing 12 categories of
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
food or grocery items with the corresponding unit sales and revenue
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
generated over the last year. The scatterplot between the unit sale and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
revenue earned is sum_unit and sum_dollars, respectively. Scatterplot:
|\ |\ |\ |\ |\ |\ |\
Which data analytics techniques will be impactful based on the scatterplot?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Are all the relevant variables present?
|\ |\ |\ |\ |\
A data analyst is working on a project to identify the main reasons for
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
customer complaints and is planning to review the data. Which question
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
should the analyst consider in this scenario?
|\ |\ |\ |\ |\ |\
,What is the format and structure of the data?
|\ |\ |\ |\ |\ |\ |\ |\
A data analyst plans to explore possible indicators of fraud in bank
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
transactions. The analyst is considering different tools that can be used to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
collect the data needed. Which question should the analyst consider when
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
identifying the tool to use? |\ |\ |\ |\
What is the response rate for the survey?
|\ |\ |\ |\ |\ |\ |\
A company will survey its customers to understand the potential demand for
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
a new product. A data analyst will review the data. Which question should
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the analysis consider to validate the representativity of the data?
|\ |\ |\ |\ |\ |\ |\ |\ |\
Text analysis |\
A retail company wants to improve customer satisfaction by understanding
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the factors that influence customer loyalty. The company has collected
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
customer feedback data from different sources, such as online surveys, social
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
media platforms, and customer support calls. Which data analytic technique
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
should be used to identify the factors influencing customer loyalty based on
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the collected customer feedback data?
|\ |\ |\ |\
Logistic regression analysis |\ |\
A data analyst working for a digital marketing agency wants to analyze
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
customer data to identify factors that are most strongly associated with
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
customer churn. The analyst has access to a database of customer
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
information, which includes data such as age, gender, location, income,
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
purchasing behavior, engagement with the agency's services, and customer
|\ |\ |\ |\ |\ |\ |\ |\ |\
satisfaction ratings. Which data analytic technique should be used to identify
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
factors that are strongly associated with customer churn for the agency?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Regression analysis is used to analyze the relationship between one or more
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
independent variables and a dependent variable. |\ |\ |\ |\ |\
A car manufacturing company is looking to improve its production by
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
analyzing how factors such as temperature, humidity, and machine
|\ |\ |\ |\ |\ |\ |\ |\ |\
, performance affect production efficiency. To identify the key factor that
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
affects efficiency the most, an analyst uses the regression analysis technique.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
What justifies the use of regression analysis for the given task?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Which data analytic technique would be most appropriate to identify any
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
trends or patterns in the clothing store's sales data?
|\ |\ |\ |\ |\ |\ |\ |\
A clothing store has been tracking its sales data for the first five months of
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the year. They have collected data on the number of items sold, the average
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
price per item, and the total revenue generated each month. They are
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
required to analyze their sales data to identify any trends or patterns and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
improve their sales strategy. Here is a sample data table:
|\ |\ |\ |\ |\ |\ |\ |\ |\
Association rules analysis |\ |\
A data analyst working for a retail company analyzes the purchasing
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
behavior of customers to identify patterns and recommend products. Which
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
data analytic technique is most appropriate for analyzing the transaction
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
data?
Time series |\
An energy company wants to predict future energy demand to optimize
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
production. The company has an extensive data set on historical energy
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
usage. Which data analytic technique is best suited for this scenario?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
The p-value|\
A pharmaceutical company wants to understand if a new drug reduces
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
fevers. The data suggest a fever reduction when using the drug. The
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
company's data analysts study the data to determine whether the effect
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
observed could have occurred by chance. Which data analytic calculation
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
should the analysts perform?|\ |\ |\
data analytics
|\
The process of analyzing data to extract insights
|\ |\ |\ |\ |\ |\ |\
-___ involves analyzing data to extract insights and inform decision-making.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
answers
What are the top-selling products in each location?
|\ |\ |\ |\ |\ |\ |\
A retail company collects data on its sales for the last quarter. The data
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
includes information on the sale of the products sold, the price, the quantity,
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
and the sale location.
|\ |\ |\ |\ |\
Which type of question can the data analytics project answer based on the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
available data? |\
Sales data categorized by product
|\ |\ |\ |\
A business seeks to increase profitability and optimize inventory
|\ |\ |\ |\ |\ |\ |\ |\ |\
management. They decide to carry out data analytics research to determine|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
which merchandise is selling quickly and which is selling slowly. The
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
research seeks to determine whether there is a relationship between the kind
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
of merchandise and sales velocity. Which data is required to answer the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
question for the data analytics project in the scenario?
|\ |\ |\ |\ |\ |\ |\ |\
Patient feedback survey results|\ |\ |\
A healthcare provider aims to improve patient satisfaction and retention.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
They seek to answer the question, "What factors are associated with patient
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
satisfaction?" Which data is required to answer this question in the scenario?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Customer device usage data |\ |\ |\
A financial institution is seeking to reduce the risk of fraudulent
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
transactions. The institution has customer data that includes account
|\ |\ |\ |\ |\ |\ |\ |\ |\
information, transaction history, demographics, and device usage. The data
|\ |\ |\ |\ |\ |\ |\ |\ |\
analytics project aims to answer the question: "What patterns of behavior
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
,suggest a higher risk of fraudulent transactions?” Which data is required to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
meet the needs of the project and address the risk of fraudulent transactions?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
What are the most popular products among customers aged 18-25?
|\ |\ |\ |\ |\ |\ |\ |\ |\
An e-commerce company has collected various types of data about their
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
customers, products, and sales transactions. The available data includes
|\ |\ |\ |\ |\ |\ |\ |\ |\
customer demographics, product attributes, purchase history, website
|\ |\ |\ |\ |\ |\ |\
clickstream data, and customer feedback .Which question can be answered
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
using data analytics based on the available data?
|\ |\ |\ |\ |\ |\ |\
Is the data correct?
|\ |\ |\
A food delivery company would like to study economic conditions' effects on
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
sales. The analyst in charge of the project is planning on gathering
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
economic data from a well-known blog. Which question should the analyst
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
consider in the scenario? |\ |\ |\
What is the impact of the outliers on the analysis?
|\ |\ |\ |\ |\ |\ |\ |\ |\
A data analyst is planning the data preparation phase of a data analysis
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
project. During planning, they consider what to do if the data contains a lot
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
of outliers. Which question should the analyst consider in this scenario?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Linear regression model |\ |\
A pivot table is created using R programming representing 12 categories of
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
food or grocery items with the corresponding unit sales and revenue
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
generated over the last year. The scatterplot between the unit sale and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
revenue earned is sum_unit and sum_dollars, respectively. Scatterplot:
|\ |\ |\ |\ |\ |\ |\
Which data analytics techniques will be impactful based on the scatterplot?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Are all the relevant variables present?
|\ |\ |\ |\ |\
A data analyst is working on a project to identify the main reasons for
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
customer complaints and is planning to review the data. Which question
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
should the analyst consider in this scenario?
|\ |\ |\ |\ |\ |\
,What is the format and structure of the data?
|\ |\ |\ |\ |\ |\ |\ |\
A data analyst plans to explore possible indicators of fraud in bank
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
transactions. The analyst is considering different tools that can be used to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
collect the data needed. Which question should the analyst consider when
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
identifying the tool to use? |\ |\ |\ |\
What is the response rate for the survey?
|\ |\ |\ |\ |\ |\ |\
A company will survey its customers to understand the potential demand for
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
a new product. A data analyst will review the data. Which question should
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the analysis consider to validate the representativity of the data?
|\ |\ |\ |\ |\ |\ |\ |\ |\
Text analysis |\
A retail company wants to improve customer satisfaction by understanding
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the factors that influence customer loyalty. The company has collected
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
customer feedback data from different sources, such as online surveys, social
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
media platforms, and customer support calls. Which data analytic technique
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
should be used to identify the factors influencing customer loyalty based on
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the collected customer feedback data?
|\ |\ |\ |\
Logistic regression analysis |\ |\
A data analyst working for a digital marketing agency wants to analyze
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
customer data to identify factors that are most strongly associated with
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
customer churn. The analyst has access to a database of customer
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
information, which includes data such as age, gender, location, income,
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
purchasing behavior, engagement with the agency's services, and customer
|\ |\ |\ |\ |\ |\ |\ |\ |\
satisfaction ratings. Which data analytic technique should be used to identify
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
factors that are strongly associated with customer churn for the agency?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Regression analysis is used to analyze the relationship between one or more
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
independent variables and a dependent variable. |\ |\ |\ |\ |\
A car manufacturing company is looking to improve its production by
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
analyzing how factors such as temperature, humidity, and machine
|\ |\ |\ |\ |\ |\ |\ |\ |\
, performance affect production efficiency. To identify the key factor that
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
affects efficiency the most, an analyst uses the regression analysis technique.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
What justifies the use of regression analysis for the given task?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Which data analytic technique would be most appropriate to identify any
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
trends or patterns in the clothing store's sales data?
|\ |\ |\ |\ |\ |\ |\ |\
A clothing store has been tracking its sales data for the first five months of
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the year. They have collected data on the number of items sold, the average
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
price per item, and the total revenue generated each month. They are
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
required to analyze their sales data to identify any trends or patterns and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
improve their sales strategy. Here is a sample data table:
|\ |\ |\ |\ |\ |\ |\ |\ |\
Association rules analysis |\ |\
A data analyst working for a retail company analyzes the purchasing
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
behavior of customers to identify patterns and recommend products. Which
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
data analytic technique is most appropriate for analyzing the transaction
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
data?
Time series |\
An energy company wants to predict future energy demand to optimize
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
production. The company has an extensive data set on historical energy
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
usage. Which data analytic technique is best suited for this scenario?
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
The p-value|\
A pharmaceutical company wants to understand if a new drug reduces
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
fevers. The data suggest a fever reduction when using the drug. The
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
company's data analysts study the data to determine whether the effect
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
observed could have occurred by chance. Which data analytic calculation
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
should the analysts perform?|\ |\ |\
data analytics
|\
The process of analyzing data to extract insights
|\ |\ |\ |\ |\ |\ |\
-___ involves analyzing data to extract insights and inform decision-making.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
