Question: The following data list worldwide shipments of personal computers [in thousands] according to Dataquest.
Year
|
Shipments (in thousands)
|
1990
|
23,738
|
1991
|
26,966
|
1992
|
32,411
|
1993
|
38,851
|
1994
|
47,894
|
1995
|
60,171
|
1996
|
71,065
|
1997
|
82,400
|
1998
|
97,321
|
Use exponential smoothing to find the forecast of shipments for the year 1999. Apply the actual shipments for 1990 as the starting forecast for 1991. Use a smoothing constant of α = 0.4.