Cell phones: The table on the following page gives the amount spent on cellular service. a. Plot the data points.  b. Find the equation of the regression line and add its graph to the plotted data. c....

Cell phones: The table on the following page gives the amount spent on cellular service.

a. Plot the data points.

 b. Find the equation of the regression line and add its graph to the plotted data.

c. In 2006, $125.5 billion was spent on cellular service. If you had been a financial strategist in 2005 with only the data in the table above available, what would have been your prediction for the amount spent on cellular service in 2006?