Quarterly sales revenue (in $million) for a particular company has been modelled using linear regression with indicator variables:
Y = 132 + 2Q1 + 3Q2 - 5Q4 + 2t
Where t is time in quarters, with origin March 2006 and Q1, Q2 and Q4 are the indicator variables for March, June and December quarters, respectively.
Describe the trend and seasonal effects.

Question

Quizplus · Accepted Answer

The Answer of Quarterly sales revenue (in $million) for a particular company has been modelled using linear regression with indicator variables:
Y = 132 + 2Q1 + 3Q2 - 5Q4 + 2t
Where t is time in quarters, with origin March 2006 and Q1, Q2 and Q4 are the indicator variables for March, June and December quarters, respectively.
Describe the trend and seasonal effects.

Quarterly Sales Revenue (In $Million) for a Particular Company Has