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4.11 a) Use exponential smoothing with a smoothing con- stant of 0.3 to forecast the registrations at the seminar given in Problem 4.10. To begin the procedure, assume that the forecast for year 1 was 5,000 people signing up. b) What is the MAD? P

I don’t have access to question 4.10. but the formula would be like this.
a.
Actual
Forecast
Year 1
5000
Year 2
x
=0.3*x+(1-0.3)*5000
use value of x and calculate forecast
b.
Actual
Forecast
Deviation
Abs Dev= Forecast-Deviation
Year 1
y
5000
y-5000
‘=IF(Deviation
 
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