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WGU C207 – Data-Driven Decision Making (OA Exam 2025/2026) | Complete Study Guide and Practice Material

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This document provides a comprehensive study guide for the WGU C207 OA (Objective Assessment) in Data-Driven Decision Making for the 2025/2026 academic year. It covers all major topics, including statistical analysis, data interpretation, hypothesis testing, probability, regression, and data visualization. The material includes explanations, examples, and practice questions designed to help students master analytical concepts and prepare effectively for the final exam.

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WGU C207
OA
2025/2026

, WGU C207 OA 2023
Prescriptive - Answer Analytics is a broad term that refers to a variety of tools that
inform managerial decisions.

Which term can be used to describe managerial decisions

Relatively lower cost of computer storage
Higher computer processing power - Answer What are two reasons for the increasing
use of analytics in organizational decision making?

Choose 2 answers

By quantifying risk - Answer In what way does probability theory inform decision-making
for managers?

Ordinal data - Answer Which type of data are the Olympic medals of gold, silver, and
bronze examples of?

It reduces the amount of incomplete data.
It cleans data. - Answer What are some of the aspects of data quality management?

Choose 2 answers

Missing data
Misspelled data - Answer Which two attributes indicate potential data quality issues
when evaluating a set of nominal data?

Choose 2 answers

Systematic error - Answer When conducting a study that measures an individual's
weight, all scales are calibrated prior to use in measurement.

Which type of error should this procedure significantly reduce?

The response variable - Answer An advertising manager creates a research study by
presenting low, medium, or high frequency of the same ad in matched markets. The
manager then reports on sales in each market location.

What is the term for the different sales in this study?

Cohort study - Answer A healthcare study follows a particular sample over time to
identify how the health habits of teenagers impact their likelihood of acquiring various
diseases later in their life in the hope that the healthcare organization will be able to
create early prevention programs.

Which type of research design does this study describe?

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