Question: Historical demand for the number of doctors on night shift in a local hospital is:
Week Doctors
1 45
2 48
3 44
4 36
5 48
6 30
Forecast the number of doctors in week 7 by applying each of the following methods:
a. 4-period simple moving average method
b. 3-period weighted moving average method with weights 2,4,and 6
c. an exponential smoothing method with alpha = 0.4