Statistics Professional Standards & Competencies 4

Question 1

Which of the following is a core competency specified in the American Statistical Association's endorsed data science framework?

Accepted Answer

Ability to communicate statistical uncertainty to non-technical audiences

Answer

Communicating uncertainty and statistical findings clearly to diverse audiences is a foundational competency in professional statistical practice.

Question 2

When reporting a confidence interval, professional standards require that the statistician clearly communicate:

Accepted Answer

The procedure used, confidence level, and what the interval estimates

Answer

Professional reporting requires specifying the estimation procedure, confidence level, and the quantity being estimated to avoid misinterpretation.

Question 3

A data scientist notices that a predictive model performs well overall but poorly for a minority subgroup. Professional standards suggest they should:

Accepted Answer

Disclose the differential performance and recommend targeted model improvements

Answer

Algorithmic fairness and professional ethics require disclosing subgroup performance disparities and actively working to address them.

Question 4

Under GDPR and U.S. statistical agency standards, which principle governs limiting data use to the purpose for which it was originally collected?

Accepted Answer

Purpose limitation

Answer

Purpose limitation prohibits using personal data for purposes incompatible with those disclosed at the time of collection.

Question 5

A statistician conducting a meta-analysis should be most concerned about which threat to the validity of conclusions?

Accepted Answer

Publication bias favoring positive results

Answer

Publication bias systematically excludes null results, causing meta-analyses to overestimate true effect sizes.

Statistics Practice Test

Statistics Practice Test

Statistics Professional Standards & Competencies 4