2.5.Course challenge - sj50179/Google-Data-Analytics-Professional-Certificate GitHub Wiki

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Scenario 1, questions 1-5

You’ve just started a job as a data analyst at a small software company that provides data analytics and business intelligence solutions. Your supervisor asks you to kick off a project with a new client, Athena’s Story, a feminist bookstore. They have four existing locations, and the fifth shop has just opened in your community.

Athena’s Story wants to produce a campaign to generate excitement for an upcoming celebration and introduce the bookstore to the community. They share some data with your team to help make the event as successful as possible.

Your task is to review the assignment and the available data, then present your approach to your supervisor.

Then, review the email, and review the Customer Survey and Historical Sales datasets:

Question 1

After reading the email, you notice that the acronym WHM appears in multiple places. You look it up online, and the most common result is web host manager. That doesn’t seem right to you, as it doesn’t fit the context of a feminist bookstore. How do you proceed?

  • Schedule a meeting with your supervisor, the client, and another analyst on your team to figure out the meaning.
  • Proceed with the project assuming WHM must mean web host manager.
  • Send your supervisor a polite, concise email, asking them to confirm the meaning of WHM.
  • Call the client to ask what WHM means and inform them that using acronyms is not a professional business practice.

Correct. You should send your supervisor a polite, concise email, asking them to confirm the meaning of WHM.

Question 2

Now that you know WHM stands for Women’s History Month, you continue reviewing the datasets. You notice the Customer Survey dataset contains both qualitative and quantitative data.

The quantitative data includes information from which columns? Select all that apply.

  • Column C (Survey Q3: Do you purchase feminist books in honor of WHM, either for yourself or as a gift for someone else?)
  • Column D (Survey Q4: If answered "Yes" to Q3, how many books do you typically purchase during March?)
  • Column E (Survey Q5: What do you like most about Athena's Story?)
  • Column A (Survey Q1: Do you plan to celebrate WHM?)

Correct. The quantitative data includes information from columns A, C, and D.

Question 3

Next, you review the customer feedback in column F of the Customer Survey.

The attribute of column F is, “Survey Q6: What types of books would you like to see more of at Athena's Story?” In order to verify that children’s literature and feminist zines are among the most popular genres, you create a visualization. This will help you clearly identify which genres are most likely to sell well during the Women’s History Month campaign.

Your visualization looks like this:

Fill in the blank: The visualization you create demonstrates the percentages of each book genre that make up the total number of survey responses. It’s called a _____ chart.

  • pie
  • doughnut
  • area
  • bubble

Correct. The visualization is called a pie chart.

Question 4

Now that you’ve confirmed that children’s literature and feminist zines are among the most requested book genres, you review the Historical Sales.

You’re pleased to see that the dataset contains data that’s specific to children’s literature and feminist zines. This will provide you with the information you need to make data-inspired decisions. In addition, the children’s literature and feminist zines metrics will help you organize and analyze the data about each genre in order to determine if they’re likely to be profitable.

Next, you calculate the total sales over 52 weeks for feminist zines. You type =CALCULATE(E2-E53) but get an error. What is the correct syntax?

  • =SUM(E2:E53)
  • =MAX(E2:E53)
  • =COUNT(E2:E53)
  • =CALC(E2:E53)

Correct. Review the section on spreadsheet functions for a refresher.

Question 5

After familiarizing yourself with the project and available data, you present your approach to your supervisor. You provide a scope of work, which includes important details, a schedule, and information on how you plan to prepare and validate the data. You also share some of your initial results and the pie chart you created.

In addition, you identify the problem type, or domain, for the data analysis project. You decide that the historical sales data can be used to provide insights into the types of books that will sell best during Women’s History Month this coming year. This will also enable you to determine if Athena’s Story should begin selling more children’s literature and feminist zines.

Using historical data to make informed decisions about how things may be in the future is an example of discovering connections.

  • True
  • False

Correct. Using historical data to make informed decisions about how things may be in the future is an example of making predictions.

Scenario 2, questions 6-10

You’ve completed this program and are now interviewing for your first junior data analyst position. You’re hoping to be hired by an event planning company, Patel Events Plus.

So far, you’ve successfully completed the first round of interviews with the human resources manager and director of data and strategy. Now, the vice president of data and strategy wants to learn more about your approach to managing projects and clients.

You arrive Thursday at 1:45 PM for your 2 PM interview. Soon, you’re taken into the office of Mila Aronowicz, vice president of data and strategy. After welcoming you, she begins the behavioral interview.

First, she hands you a copy of Patel Events Plus’s organizational chart. Access the chart here.

Question 6

As you’ve learned in this course, stakeholders are people who invest time, interest, and resources into the projects you’ll be working on as a data analyst. Let’s say you’re working on a project involving data and strategy. Based on what you find in the organizational chart, if you need information from the primary stakeholder, who can you ask?

  • Director, strategy
  • Chief executive officer
  • Vice president, data and strategy
  • Project manager, analytics

Correct. If you need information from the primary stakeholder, you can ask the vice president of data and strategy.

Question 7

Next, the vice president wants to understand your knowledge about asking effective questions. Consider and respond to the following question. Select all that apply.

Let’s say we just completed a big event for a client and wanted to find out if they were satisfied with their experience. Provide some examples of measurable questions that you could include in the customer feedback survey.

  • What did you most love about your event experience?
  • How satisfied were you with our event planning service — dissatisfied, neutral, or satisfied?
  • What problems did you experience with our events team?
  • On a scale from 1 to 5, with 1 being not at all likely and 5 being very likely, how likely are you to recommend Patel Events Plus?

Correct. In the SMART methodology, measurable questions can be quantified and assessed. This might include a 1-to-5 scale or questions with ranked responses.

Question 8

Now, the vice president presents a situation having to do with resolving challenges and meeting stakeholder expectations. Consider and respond to the following question.

You’re working on a rush project, and you discover your dataset is not clean. Even though it has numerous nulls, redundant data, and other issues, the primary stakeholder insists that you move ahead and use it anyway. The project timeline is so tight that there simply isn’t enough time for cleaning. How would you handle that situation?

  • Clean the data as quickly as you can. It’s not perfect, but it’s better than it was before, and this way you can meet the deadline.
  • The stakeholder is in charge. It's best to do as they say and use the unclean dataset.
  • Communicate the situation to your supervisor and ask for advice on how to handle the situation with the stakeholder.
  • Contact the stakeholder’s boss to let them know about the issue and ask for help managing the stakeholder’s expectations.

Correct. This situation presents an opportunity to communicate, collaborate, and foster positive working relationships.

Question 9

Your next interview question deals with sharing information with stakeholders. Consider and respond to the following question.

Let’s say you want to share information about an upcoming event with stakeholders. It’s important that they’re able to access and interact with the data in real time. Would you create a report or a dashboard?

  • Dashboard
  • Report

Correct. Dashboards offer live monitoring of incoming data and enable stakeholders to interact with the data.

Question 10

Scenario 2 continued

Your final behavioral interview question involves using metrics to answer business questions. Your interviewer hands you a copy of PatelEventsData.

Then, she asks: Recently, Patel Events Plus purchased a new venue for our events. If we asked you to compare the purchase price (cost) and net profit, what would you be calculating?

  • Occupancy rate
  • Return on investment
  • Sales numbers
  • Metric goal

Correct. Return on investment is made up of two metrics: the net profit over a period of time and the cost of the investment. By comparing these two metrics, you can determine the profitability of the investment.