Independent-day planning
Explore how precision and systematic bias affect the approximate workload.
Calculator and method
Numeric inputs appear in a shared link. CSV data are kept out of the link.
Know what the result means.
Normal approximation for 80% power and a two-sided 95% interval; a planning illustration, not the protocol’s final sample-size calculation. WX-FOG-001 requires a noncentral-t calculation and an upper variance estimate from fresh pilot days.
Version 1.0 · SI quantities are used internally, with displayed input units converted explicitly. Retain your assumptions with any exported result.
Follow the definitions.
References support the physical relationships or measurement context. They do not validate any proposed weatherhill hardware.
Keep exploring.
Paired fog-trial analysis
Analyze transit-aligned upstream/downstream means across independent days.
ExperimentsBalanced trial schedule
Export a reproducible, balanced C/D order across preparation days.
ExperimentsMeasurement bias budget
Translate component bounds into a worst-case log-ratio allowance.