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PTA 403 · Unit 3 of 6

Funnels, Cohorts and Retention

Product Analytics and Data-Informed Decisions

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Learning objectives

After completing this unit, you will be able to:

  • Produce workbook-ready memos with evidence labels
  • Apply the frameworks in "Funnels, Cohorts and Retention" to a real management decision
  • Make progress on your Knowledge check on unit page applied project

Why this matters

Funnel snapshots without cohorts misprice channel spend and product onboarding work.

Lesson

Unit overview

Complete all 4 lessons in order. Each lesson follows the program gold standard: SignalStack scenarios, worked examples, practice problems, and managerial judgment prompts tied to Funnels, Cohorts and Retention.

Connection to applied work

This unit feeds directly into Knowledge check on unit page. As you read, capture notes, examples, and data you can reuse in that deliverable. Strong students finish each unit with a draft section of their project, not just highlights.

Practice

  1. Write a one-page summary of this unit in your own words without looking at the lesson.
  2. Find a real company example (public filing, news article, or personal experience) that illustrates the main concept.
  3. Draft one paragraph recommending an action a manager should take based on this unit.
  4. Add at least three terms from this unit to your course glossary.

Knowledge check

Answer these without notes before marking the unit complete:

  1. What is the central idea of "Funnels, Cohorts and Retention"?
  2. What mistake do beginners most often make when applying this material?
  3. How does this unit help you complete Knowledge check on unit page?
  4. What is one decision you face this month where this unit applies?

Key takeaways

  • Produce workbook-ready memos with evidence labels
  • Business concepts only matter when they change a decision.
  • Your PTA 403 assessment (Funnels, Cohorts and Retention for Product Analytics and Data-Informed Decisions using SignalStack applied examples.) rewards applied understanding, not memorization.

Unit assessment

Complete each section below. Score 80%+ on the quiz to finish this unit's assessment.

50% applied project30% case work20% knowledge checks

Exercises

Apply what you learned in this unit with structured practice.

ExerciseApplied practice: Funnels, Cohorts and Retention45 min
Complete a focused practice exercise on **Funnels, Cohorts and Retention**. 1. Choose a real company, product, or situation you know. 2. Apply one core framework from this unit to analyze it. 3. Write your analysis in 300–500 words with a clear recommendation. 4. Cite at least one credible source.

Deliverable

300–500 word analysis document saved to your portfolio under PTA 403.

Rubric

  • • Framework applied correctly (not just named)
  • • Specific evidence from a real example
  • • Clear recommendation with tradeoffs acknowledged
  • • Professional writing with source citation
ExerciseDrill: Funnels, Cohorts and Retention30 min
Work through the practice problems in the unit lesson without looking at notes. Then check your work against the lesson and write a short reflection: - What you got right - One mistake you caught - One concept to review before the next unit

Deliverable

Problem solutions + 150-word reflection in your PTA 403 workbook.

Rubric

  • • Attempted all practice items before checking answers
  • • Honest reflection on errors
  • • Identifies a specific review action

Case analysis

Analyze a case using frameworks from this unit.

CaseCase analysis: Funnels, Cohorts and Retention60 min
Analyze a real business case through the lens of **Funnels, Cohorts and Retention**. Choose a public company event, HBR-style case, or documented decision. **Deliverable structure:** 1. Situation summary (150 words) 2. Analysis using this unit's frameworks (400 words) 3. Recommendation (150 words) 4. Risks and what would change your mind

Deliverable

2-page case write-up in your portfolio.

Rubric

  • • Case facts are accurate and sourced
  • • Analysis uses unit frameworks explicitly
  • • Recommendation is justified with tradeoffs
  • • Risks are specific, not generic

Knowledge quiz

Check your understanding before marking the unit complete.

1. SignalStack's Maya Chen faces: "Signup funnel looked healthy; cohort retention showed enterprise trials never activated second core action." Which decision frame is strongest?

2. Which term from Funnels, Cohorts and Retention is defined correctly for SignalStack?

3. Priya Nair reviews evidence for Funnels, Cohorts and Retention. Which label is appropriate after 12 customer interviews showing a recurring theme?

4. Which mistake is most common when applying Funnels, Cohorts and Retention at dev-tools scale?

5. SignalStack reports $18M ARR and 92,000 DAU. Why does Funnels, Cohorts and Retention discipline matter at this scale?

6. Which framework mapping fits Funnels, Cohorts and Retention at SignalStack?

7. Dev Okonkwo warns about inference cost and reliability. Which guardrail metric fits Funnels, Cohorts and Retention?

8. Integrating PTA 403 for SignalStack, strongest next test after descriptive dashboard read is usually:

Next unit: Experimentation and Causal Inference →