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IED Unit 4 • Lesson 4.19

Data Analysis, Graphing, and Design Conclusions

Focus question: How can data help engineers decide whether a prototype was successful?

Mission Briefing

Today’s Plan

Use this page with the lesson presentation, your engineering notebook, and the tools or evidence assigned for Analyze Performance and Draw Conclusions.

Learning Targets

  • Organize prototype test data for analysis.
  • Create or interpret a graph that communicates system performance.
  • Write a conclusion that connects data to success criteria.

Success Looks Like

You can analyze prototype data, create a graph, and write a design conclusion supported by evidence.

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Opening Prompt

How can data help engineers decide whether a prototype was successful?

Connect your response to the decision, evidence, or quality standard required for Analyze Performance and Draw Conclusions.

Reveal: useful engineering move

This lesson is ready to move forward when the evidence meets this standard: The conclusions match the data and distinguish successful performance from uncertainty or failure.

Core Skill

What We Are Practicing

Key Idea 1

Analysis turns raw measurements into engineering meaning.

Key Idea 2

Graphs make patterns and comparisons visible.

Key Idea 3

A design conclusion should say what the data support and what remains uncertain.

Your Task

Analyze Performance and Draw Conclusions

Use graphs and summary statistics to evaluate the prototype against its success criteria.

  1. Check and organize the test data.
  2. Calculate the assigned summary values.
  3. Create the most useful graph for the measured behavior.
  4. Write a conclusion for each tested criterion.

Quality check: The conclusions match the data and distinguish successful performance from uncertainty or failure.

Lesson Interactive

Calculate a Mean and Support a Design Conclusion

Turn test results into a claim that is limited to what the data actually shows.

Deployment-Time Trials

1.8, 1.7, 1.9, 1.6, 1.7 seconds

Requirement: mean deployment time below 2.0 seconds.

Calculated mean
Use the mean and the stated target. Avoid claims that go beyond the tested conditions.
What You Will Submit

Performance Analysis

  • One labeled graph with supporting calculations.
  • A concise evidence-based conclusion.

Submission standard: The conclusions match the data and distinguish successful performance from uncertainty or failure.

Resources

Lesson Resources

Presentation

Lesson 4.19 PowerPoint

Use the lesson slides for guided practice, interactive checks, and the exit ticket.

Course Hub

Introduction to Engineering Design

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