Pass the IIBA Business Data Analytics CBDA Questions and answers with CertsForce

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Questions # 31:

An organization's customers are categorized based on the amount of purchases completed over the last 12 months. The analytics team would like to ensure the accuracy of their survey results and decide to randomly select 500 customers to participate in a survey from this large pool of customers. This is an example of:

Options:

A.

Stratified sampling


B.

Quota sampling


C.

Purposive sampling


D.

Snowball sampling


Expert Solution
Questions # 32:

The results of the data analytics work led to some clear and strongly supported outcomes and the analytics team is very confident in their recommendations; particularly given that the payback on the required changes are a short 3 months. However, there is concern because the organization operates in a highly regulated environment and some new regulatory changes are being considered with announcements and implementation in the next 6 months. Under these conditions the team decides to:

Options:

A.

Recommend no action be taken at this time and revisit in 6 months


B.

Reassess their results to ensure their validity and then decide what to do


C.

Identify and carefully document assumptions for their recommendation


D.

Postpone recommendations for 6 months until the announcements are made


Expert Solution
Questions # 33:

Based on the results of a recently completed analytics initiative, the Human Resource department for a major department store implemented a change to its hiring practice to address the attrition rates of its sales associates. The new policy stated that candidates applying for sales positions must possess at least 3 years of relevant sales experience to be considered. After implementing the change, attrition rates are 10% higher and management is frustrated. Which of the following could result in this outcome?

Options:

A.

The results of analysis have been incorrectly interpreted


B.

Sales experience is not a relevant skill


C.

Analytics is not helpful given this situation


D.

The change proposed is not aligned to company strategy


Expert Solution
Questions # 34:

While creating a dataset for analysis, the analyst reviews the data collected and finds a large percentage of records are missing values. Which activity would the analyst perform in order to use this dataset?

Options:

A.

Clustering


B.

Scale validation


C.

Weighting


D.

Factor analysis


Expert Solution
Questions # 35:

A financial software company has growth and expansion as one of their top strategic priorities for the year. The senior executive team would like to assess their sales performance over the last 3 years to help set sales objectives. In discussion with the business analytics manager, for a comprehensive sales report, the sales lead recommends looking into the number of contracts signed over the past 3 years and the dollar value for the signed contracts. Which other question is important to consider when evaluating sales performance?

Options:

A.

What is the time to market the software?


B.

What is the total cost incurred per year?


C.

What is the number of customers retained over the past 3 years?


D.

What is the average time for conversion?


Expert Solution
Questions # 36:

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?

Options:

A.

To make sure the criteria for the target audience is met


B.

Guarantee that the objectives of the poll are met


C.

Improve the likelihood of receiving a response rate of 100%


D.

Ensure that results are not biased or random


Expert Solution
Questions # 37:

The interplay between enterprise systems and data analytics can be envisioned at various layers. The layer that connects the business processes to data analytics is the:

Options:

A.

information layer


B.

physical layer


C.

technical layer


D.

infrastructure layer


Expert Solution
Questions # 38:

The architecture team puts forth a solution architecture that integrates multiple data sources from within and outside the organization. The architecture provides the foundation to source a new analytics program. If one of the objectives of the analytics team was to provide 'one source of the truth', this objective would be referring to which of the following?

Options:

A.

Identifying one key stakeholder, who can make final decisions about which sources to relate/merge


B.

Evaluating the completeness, validity, and reliability of the data from source systems


C.

Ensuring stakeholders always have clear insight into the final requirements at all times


D.

Enforcing master data management principles and practices


Expert Solution
Questions # 39:

An analyst is using a Data Flow Diagram (DFD) to depict the flow of data across a data security company. Which of the following is true about DFDs?

Options:

A.

Can be categorized as Logical or Physical


B.

Can illustrate a sequence of activities


C.

Provide similar information as process flows


D.

Are used to model data attributes


Expert Solution
Questions # 40:

The team has completed their analysis on a vast amount of collected data and agree on their recommendations for action.

However, they are having difficulty in developing the appropriate messages to support their recommendations. The business analysis professional suggests which technique to assist the team?

Options:

A.

T-Testing


B.

Simulation


C.

Visioning


D.

Storyboarding


Expert Solution
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