Question 4
The managers of a retail giant are preparing revenue plans for the period from October 2013 to March 2014. The data given below represents the amounts (in $m) of one of their main products.
|
|
Apr-Jun
|
Jul-Sep
|
Oct-Dec
|
Jan-Mar
|
|
2009/10
|
49
|
37
|
58
|
67
|
|
2010/11
|
50
|
38
|
59
|
68
|
|
2011/12
|
51
|
40
|
60
|
70
|
|
2012/13
|
50
|
42
|
-
|
-
|
Use the moving-average method to make seasonally-adjusted trend estimates for the third and fourth quarters of 2013 and the first two quarters of 2014. Assume that the cyclical and irregular forces have minimal influence on the time series. (Show details of all your calculations.)