C207 – Data-Driven Decision Making

Course Structure

  • Assessments:

    • 2 Performance Assessments (PA):

      • Task 1: Linear regression analysis and formulating a hypothesis.

      • Task 2: Decision tree analysis.

    • 1 Objective Assessment (OA): Multiple-choice exam focused on statistical concepts, tools, and applications.

  • Estimated Time to Complete:

    • Performance Assessments: ~5–10 days depending on revisions.

    • Objective Assessment: ~1–3 weeks of studying.

    • Overall Duration: ~2–4 weeks, though completion time varies based on prior knowledge and time commitment.

Key Steps to Complete the Course

1. Understand the Course Resources

  • Watch all videos in the Express Cohort series under "Course Tips."

  • Use the Excel add-ons for data analysis. Instructions are provided in the course resources.

  • Study provided PowerPoints and video tutorials for both tasks.

2. Task 1: Linear Regression Analysis

  • Steps:

    • Formulate a business-related hypothesis.

    • Download the Excel data template (specific to your student ID).

    • Perform linear regression analysis in Excel.

    • Interpret the data output and create a chart.

    • Write the report using the rubric as a guide. Be clear and concise.

      • Include the hypothesis, regression output, data visualization, and interpretation.

  • Tips:

    • Use T-Test for simplicity. It’s commonly recommended and easy to interpret.

    • Reference the Task 1 videos and regression guides.

    • Avoid definitive language (e.g., "X causes Y"); focus on correlation.

3. Task 2: Decision Tree Analysis

  • Steps:

    • Download the decision tree Excel file.

    • Input data to create a decision tree analysis.

    • Calculate expected values for each alternative.

    • Write a report explaining probabilities, expected values, and limitations.

  • Tips:

    • Ensure consistency in units (monthly vs. annual figures).

    • Address data limitations, such as assumptions in the market research or survey reliability.

    • Reference the Decision Tree PowerPoint and use Excel formulas for accuracy.

4. Objective Assessment (OA) Preparation

  • Key Topics:

    • Bell curve: Standard deviations, percentages, and distributions.

    • Data types: Nominal, ordinal, interval, ratio (NOIR).

    • Statistical tests: T-test, ANOVA, regression, decision trees, and their applications.

    • Charts and tools: Pareto chart, histogram, control charts, and fishbone diagrams.

    • Quality assurance vs. quality control.

  • Resources:

    • Quizlets:

    • Dr. Jack Jackson's YouTube playlist on statistics: YouTube Link.

  • Study Plan:

    • Take notes while watching cohort videos.

    • Complete the pre-assessment to identify weak areas.

    • Practice with Quizlets and focus on applying concepts rather than rote memorization.

General Tips

  • Reach Out for Help: If you're stuck, contact course instructors or your WGU mentor. They can provide guidance on assignments and clarify confusing concepts.

  • Use the Rubric: Ensure every section of the rubric is addressed in your PAs to avoid revisions.

  • Plan Revisions: Expect revisions. Most students need at least one for each task.

  • Focus on Concepts for the OA: The OA emphasizes applying statistical methods to business scenarios. Understand when and why to use each tool.

Additional Resources

  • WGU Express Cohort Page: Search "C207 Express Cohort" in the course portal.

  • Jeopardy Review Video: Available in Course Tips.

  • Pre-assessment & Chapter Quizzes: Useful for reinforcing key concepts.

  • Recommended Quizlets:

Quizlets

  1. C207 OA Flashcards
    Link
    Description: Covers key concepts for the Objective Assessment (OA).

  2. C207 Final Questions
    Link
    Description: Focuses on practice questions to prepare for the OA.

  3. WGU C207 Data-Driven Decision Making Flashcards
    Link
    Description: Terminology and concepts to aid in studying.

  4. Data-Driven Decision-Making Flashcards
    Link
    Description: Flashcards tailored to key terms and applications in the course.

  5. C207 Flashcards for Modules 1–6
    Link
    Description: A comprehensive set for all modules.

  6. C207 "Final" Flashcards Set
    Link
    Description: Focuses on final review material relevant for the OA.

YouTube and Video Resources

  1. Dr. Jack Jackson YouTube Playlist
    Link
    Description: Foundational statistics concepts and explanations aligned with course content.

  2. Are You Smarter Than a C207 Grader? Jeopardy Video
    Location: Course Tips section in WGU portal.
    Description: A fun and effective review of key terms and OA preparation.

  3. C207 Express Cohort Recordings
    Location: Found under Course Tips in the WGU portal.
    Description: Walkthroughs for Task 1, Task 2, and the OA concepts.

Documents

  1. Dr. Johnson’s Notes (Thank you Michael .L!)
    Link
    Description: Key notes provided by a course instructor for better understanding of concepts.

  2. Module 1 Book Study Notes
    Link
    Description: ELI5-style notes on Module 1 content for easier comprehension.

  3. Module 2 Study Notes
    Link
    Description: Simplified notes for Module 2.

  4. Module 3 Study Notes
    Link
    Description: Detailed explanations and tips for understanding Module 3.

Other External Resources

  1. Panopto Recordings for C207
    Link
    Description: Legacy Panopto videos providing additional depth and examples not covered in the current course material.

  2. Reddit Post with Tips for C207 Version 4
    Link
    Description: Comprehensive tips for tasks and exam preparation.

Closing Note

You can absolutely succeed in C207. Many students find it challenging, but the resources provided will guide you through. Take it step by step, and don’t hesitate to ask for help if needed. Remember, course materials and requirements may change, so always refer to the most current resources. If you fail the test don’t be discouraged, I read a dozen accounts of students failing twice, but finally passing. We can do this!! Good luck! 🚀

Compiled and condensed insights from 43 pages of community tips into this study guide.