Answer: The most appropriate way to combine a judgment approach to forecasting with a quantitative approach is by adjusting a forecast up or down to compensate for specific events not included in the quantitative technique. This is option d.
Explanation: Option a is incorrect because it would be too time-consuming and expensive to have a group of experts examine each historical data point.
Option b is incorrect because developing a trend model to predict the outcomes of judgmental techniques would not be effective since judgmental techniques are based on subjective opinions rather than objective data.
Option c is incorrect because combining opinions about the quantitative models would not necessarily lead to a more accurate forecast.
Therefore, option d is the best way to combine a judgment approach to forecasting with a quantitative approach.
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