SCENARIO 16-12 A local store developed a multiplicative time-series model to forecast its revenues in future quarters, using quarterly data on its revenues during the 5-year period from 2009 to 2013.The following is the resulting regression equation: 
where 
is the estimated number of contracts in a quarter. X is the coded quarterly value with X = 0 in the first quarter of 2008. 
is a dummy variable equal to 1 in the first quarter of a year and 0 otherwise. 
is a dummy variable equal to 1 in the second quarter of a year and 0 otherwise. 
is a dummy variable equal to 1 in the third quarter of a year and 0 otherwise.
-Referring to Scenario 16-12, the best interpretation of the coefficient of 
in the regression equation is:
Definitions:
Religious Conviction
A firm belief in a particular religion or religious principles, often guiding an individual's actions and decisions.
Immediate Emancipation
The instant freeing of slaves, without gradual measures, often advocated by abolitionists before and during the American Civil War.
Gradual Emancipation
A series of acts passed in state legislatures throughout the North in the years following the Revolution that freed slaves after they reached a certain age, following lengthy “apprenticeships.”
Free Blacks
Encompasses African Americans who were not enslaved during the period of American history before the Civil War, enjoying a status of legal freedom, though often facing racial discrimination and inequality.
Q33: Referring to Scenario 14-14, the predicted mileage
Q65: Referring to Scenario 16-13, if a five-month
Q87: Referring to Scenario 17-6, what is the
Q136: Referring to Scenario 14-19, what is the
Q140: You need to decide whether you should
Q155: Referring to Scenario 16-14, in testing the
Q163: Referring to Scenario 14-4, the coefficient of
Q174: Referring to Scenario 18-9, _ of the
Q279: Referring to Scenario 18-10 Model 1, we
Q280: Referring to Scenario 18-3, the estimate of