Which of the following is NOT one of the five qualitative forecasting models?

• A. Personal Insight
• B. Jury of Executive Opinion
• C. Delphi Method
• D. Regression Analysis

Answer: (D)

Qualitative forecasting relies on expert judgment, opinions, and consensus rather than numerical data. Personal Insight uses an individual expert’s judgment, the Jury of Executive Opinion gathers the views of a group of executives, and the Delphi Method uses structured, iterative surveys to reach a consensus. These are all qualitative because they depend on subjective insight rather than statistical calculations.

Regression Analysis, on the other hand, is a quantitative technique that builds mathematical models from historical data to forecast future demand. It relies on data and statistical relationships, not on expert opinion. That makes it the one that does not fit among the qualitative forecasting models.