Statistics Communication & Stakeholder Relations 4

Question 1

A statistician needs to explain Type I and Type II errors to a clinical trial sponsor. Which real-world framing is most effective?

Accepted Answer

Type I: approving an ineffective drug; Type II: rejecting an effective drug

Answer

Grounding abstract error types in domain-specific consequences (approving/rejecting drugs) makes them concrete and relevant for stakeholders.

Question 2

A finance team requests weekly statistical reports but rarely reads them. What is the best communication strategy?

Accepted Answer

Switch to a one-page executive dashboard highlighting key metrics and anomalies

Answer

Condensed dashboards that surface key insights and exceptions are more likely to be consumed and acted upon by busy stakeholders.

Question 3

What does 'statistical significance' fail to communicate that stakeholders often most need to know?

Accepted Answer

The practical or economic magnitude of the effect

Answer

Statistical significance only addresses whether an effect is distinguishable from zero, not whether it is large enough to matter practically.

Question 4

A city planner asks whether a survey of 500 residents can represent a city of 2 million. What is the key concept to explain?

Accepted Answer

With probability sampling, a well-designed sample of 500 can produce reliable estimates regardless of population size

Answer

Statistical precision depends more on sample size than population size when probability sampling is used correctly.

Question 5

A stakeholder is upset that the model's predictions were wrong in one notable case. How should you frame model uncertainty?

Accepted Answer

Explain that probabilistic models express uncertainty across many cases, not certainty for individual ones

Answer

Statistical models provide probabilistic predictions over populations; individual outcomes naturally vary and a single miss does not invalidate a well-calibrated model.

Statistics Practice Test

Statistics Practice Test

Statistics Communication & Stakeholder Relations 4