Question

In: Statistics and Probability

The number of users of a certain website (in millions) from 2004 through 2011 follows. Year...

The number of users of a certain website (in millions) from 2004 through 2011 follows.

Year Period Users (Millions)
2004 1 1
2005 2 6
2006 3 12
2007 4 57
2008 5 144
2009 6 361
2010 7 608
2011 8 846

Using Minitab or Excel, develop a quadratic trend equation that can be used to forecast users (in millions). (Round your numerical values to one decimal place.)

Tt =

Consider the following time series.

Quarter Year 1 Year 2 Year 3
1 72 69 63
2 49 41 51
3 58 60 53
4 77 80 71

b) Use the following dummy variables to develop an estimated regression equation to account for seasonal effects in the data:

x1 = 1 if quarter 1, 0 otherwise; x2 = 1 if quarter 2, 0 otherwise; x3 = 1 if quarter 3, 0 otherwise.

=

(c)Compute the quarterly forecasts for next year.

quarter 1 forecast

quarter 2 forecast

quarter 3 forecast

quarter 4 forecast

Solutions

Expert Solution

orchestra answered 2 years ago
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