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

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

Year   Percentage
2000   27
2001   29
2002   35
2003   42
2004   45
2005   49
2006   55
2007   59
2008   61
2009   67

a)	Forecast the percentage of tax returns that will be electronically filed for 2010 using exponential smoothing with a=0.2 (Round to the nearest integer as needed.)

b) Calculate the MAD for the forecast in part a. (Round to two decimal places as needed.)

c)	The percentage of tax returns that will be electronically filed for 2010 using exponential smoothing with trend adjustment using a=0.3 and b=0.6 is? (Round to the nearest integer as needed.)

d) Calculate the MAD for the forecast in part c (Round to two decimal places as needed.)

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orchestra answered 2 years ago

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