Demand for patient surgery at Washington General Hospital has increased steadily in the past few years, as seen in the following table:
|
YEAR
|
OUTPATIENT SURGERIES PERFORMED
|
|
1
|
45
|
|
2
|
50
|
|
3
|
52
|
|
4
|
56
|
|
5
|
58
|
|
6
|
-
|
The director of medical services predicted six years ago that demand in year 1 would be 42 surgeries. Using exponential smoothing with a weight of a=0.20, develop forecasts for years 2 through 6. What is the MAD?