The last four weekly values of sales were 80, 100, 105, and 90 units. The last four forecasts were 60, 80, 95, and 75 units. These forecasts illustrate:
A) qualitative methods.
B) adaptive smoothing.
C) slope.
D) bias.
E) trend projection.

Question

Quizplus · Accepted Answer

The forecasts consistently underestimate the actual sales, indicating a systematic deviation from the true values, which is referred to as bias.

The Last Four Weekly Values of Sales Were 80, 100