# Measurement sample-size estimate
# Scope: Zero observed failures binomial demonstration count for supplied confidence/reliability.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

reliability = 0.9
confidence = 0.95

samples := ceil(log(1-confidence)/log(reliability))

check test sample budget: samples <= 30

scenario alternative: reliability = 0.72