Public works wants to judge winter road-treatment performance by comparing this February to January, which routinely has different storm patterns. What comparison approach should the information manager recommend?
Select an answer to reveal the explanation.
Short Explanation
Comparing February salt runs to January is often like comparing ski tickets to baseball tickets—same year, different season of demand. Winter treatments live on storm patterns, so year-over-year for the same season usually tells a fairer story. Pick comparison windows that respect seasonality.
Full Explanation
Seasonal processes exhibit systematic calendar patterns that make adjacent-month comparisons misleading. Year-over-year windows align similar seasonal conditions and improve interpretability of winter road-treatment metrics. Analysts should choose periods that control for known seasonality before claiming performance change.