Product Management Product Management: Cost Estimation 5

Question 1

What is the significance of the 'cone of uncertainty' in product cost estimation?

Accepted Answer

It illustrates that estimates are highly inaccurate early on and become more precise as project details emerge

Answer

The cone of uncertainty shows that early project estimates can vary widely (±75%), but accuracy improves significantly as scope and design become clearer.

Question 2

A PM must estimate the cost of a new product with no comparable historical data. Which estimation technique is most appropriate?

Accepted Answer

Expert judgment combined with Delphi technique

Answer

When no historical data exists, expert judgment combined with the Delphi technique (iterative anonymous expert consensus) provides the most reliable estimate.

Question 3

What is opportunity cost in product management decision-making?

Accepted Answer

The value of the next best alternative foregone when choosing one investment over another

Answer

Opportunity cost is the value of the best alternative not chosen — by funding Feature A, you forgo the return Feature B would have provided.

Question 4

A PM's product has fixed costs of $200K/month and variable costs of $10 per user. At what monthly user count does the product break even if priced at $15 per user?

Accepted Answer

40,000 users

Answer

Break-even: $200K = ($15 − $10) × users → $200K = $5 × users → 40,000 users.

Question 5

Why is it important to separate 'estimate' from 'budget' when planning product costs?

Accepted Answer

Estimates reflect expected costs based on available data, while budgets are management-approved spending limits that may include added reserves

Answer

An estimate is the calculated expected cost, while a budget is the formally approved amount — which may include reserves or management adjustments above the raw estimate.

Product Management Practice Test

Product Management Practice Test

Product Management Product Management: Cost Estimation 5