The following table lists the U.S. unemployment rate for the month of July, 1992 through 2...

The following table lists the U.S. unemployment rate for the month of July, 1992 through 2002. The unemployment rate represents the number unemployed as a per¬cent of the labor force.

a. Create a scatter plot of the data.

b. Do a sine regression to find an equation that models the data.

c. If we assume that the unemployment rate is cyclic, what is the length of this cycle?

d. What will the unemployment rate, based on this model, be in July, 2012?