The accompanying data table show the percentage of tax returns filed electronically in a city from...

The accompanying data table show the percentage of tax returns filed electronically in a city from 2000 to 2009. Complete parts a through e below.

Year   Percentage
2000   25
2001   33
2002   37
2003   38
2004   48
2005   50
2006   55
2007   59
2008   62
2009   64

a) Forecast the percentage of tax returns that will be electronically filed for 2010 using exponential smoothing with alpha= 0.1.

b) Calculate the MAD for the forecast in part a.

c) Forecast the percentage of tax returns that will be electronically filed for 2010 using exponential smoothing with trend adjustment. Set alpha= 0.3 and beta= 0.4.

d) Calculate the MAD for the forecast in part c.

Solutions

Expert Solution

a. 2010 56.41

b. MAD 11.63

c. 2010 70.5

d. MAD 4.4

exponential smoothing

smoothing with trend

orchestra answered 1 year ago

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