JetBlue Airlines Revenue (n = 8 years)
   
Year...........................Revenue (mil)  
2008...........................3,388  
2009...........................3,286  
2010...........................3,779  
2011...........................4,504  
2012...........................4,982  
2013...........................5,441  
2014...........................5,817  
2015...........................6,416  

(a) Use Excel, MegaStat, or MINITAB to fit both a linear and an exponential trend to the time series.

Linearyt =  t +
Exponentialyt =  e  t

(b) Make annual forecasts for 2016–2018, using the linear and exponential trend models.