Free Certification in Business Data Analytics Exam CBDA Exam Practice Test

An analytics team is interested in reviewing the results of a public opinion poll that is going to be conducted at the end of the month. One of the factors the team is interested in, is ensuring the result set is statistically significant. Why would this factor be important to the team?

• To make sure the criteria for the target audience is met
• Guarantee that the objectives of the poll are met
• Improve the likelihood of receiving a response rate of 100%
• Ensure that results are not biased or random

A new dataset describing employee salaries is received by a company. A colleague wonders whether a variable follows a Gaussian distribution. Which of the following plots would demonstrate this?

• Normal probability plot
• Scatterplot
• Boxplot
• Lowess curve

A fashion retailer is developing a new line of luxury handbags and would like to evaluate their target market and pricing. After an extensive evaluation based on product features, their target market, and pricing of competitor products, the analytics team has come up with a pricing proposal. On presenting the results, the management team is of the opinion that additional analysis was required before making a decision. What type of additional analysis will help the management team make a decision on pricing?

• How diverse are the competitors- product portfolios?
• How can we broaden the target market?
• How can costs be reduced to improve the profit margin?
• What is the breakeven point before profits are generated?

A lab is conducting a study on protein interactions. They have used the data to create a graph visualization. In graph visualization, what would a layout be?

• A single data point
• A link between two data points
• A dedicated algorithm that calculates the node positions
• A collection of data points and links

Which attributes from the Order entity will need to be normalized to avoid redundancies?. Orderld. OrderDate. Itemld. ItemName. Quantity. ItemPrice

• OrderDate ItemPrice
• ItemName ItemPrice
• OrderDate ItemName
• Item Name Quantity

An online retailer has been successful utilizing analytics to guide decisions on product placement and marketing spend.Management has requested a task force be assembled to make recommendations on how to further develop their analytics capabilities. To begin this work, the task force builds a model to develop a shared understanding about customer segments, customer relationships, key partnerships, and the company's value proposition. The team has leveraged the following model to facilitate this discussion?

• Value chain analysis
• Balanced scorecard
• Business model canvas
• CATWOE

A merger has been completed between two telecommunication companies and the analytic practices from both organizations are being joined. The newly formed analytics department will create a task force of data experts to combine the data from both companies into a structure usable for future analytics initiatives. Which of the following activities would provide a high level understanding about any potential data issues that might be encountered when merging sources?

• Data conversion
• Data cleansing
• Data migration
• Data profiling

A consumer product company has recently seen decline in sales in their athletic wear over the last 3 quarters. Along with a customer satisfaction survey on their athletic wear products, a study on the competitive market has been initiated. The analyst working has created a dashboard, integrating the results from the market study with customer feedback. On reviewing with the analytics manager, the feedback received was that the visuals were powerful, but the dashboard lacked narrative. What does the manager mean by this?

• Commentary around why each visual was selected to depict the data will provide context
• More commentary needs to be added to add value to the audience
• Adding a story example will augment the experience for the audience
• Insights need to be supported by context and comments to engage the audience

The results for a certification exam were revealed in percentage and percentile. The results for one of the attendees was: 75%, 90th percentile. What is the value in sharing the percentile score?

• The percentile score provides value by assessing the attendee's score against the average score for that exam
• While the exam score is an objective score, the percentile is a relative score that assesses the attendee's score against the highest possible score
• By ranking, it provided additional insight on how the attendee performed in comparison to other attendees
• The percentile score does not add any additional value in assessing the attendee's performance

The analytics team discovers there is an abundance of data available to them from various sources. They are excited about the potential of turning this data into usable information for their organization. They decide to focus the analytics work on:

• Using the data that is easiest to collect in order to turn out reports quickly
• Harnessing all the data and presenting various results to senior management
• Harnessing all the data as long as the analysis meets key cost criteria
• Using the data to answer a limited number of key questions