Which of the following attributes is a tool that does not aid the project manager in quality planning?

Benchmarking is an accepted quality planning tool that compares project processes or deliverables against industry standards or similar projects to establish quality targets.

Design of experiments is a statistical quality planning technique used to systematically identify which variables most influence a process or product outcome.

Media selection - choosing the appropriate channel or medium to communicate with stakeholders - belongs to the communications management knowledge area, not quality planning, and provides no direct input into defining quality standards, metrics, or improvement processes.

Cost-benefit analysis is a quality planning tool used to evaluate whether the cost of implementing quality activities is justified by the benefits of meeting quality requirements.