Blueberry Farms Golf and Fish Club of Hilton Head, South Carolina, wants to find monthly seasonal indexes for package play, nonpackage play, and total play. The package play refers to golfers who visit the area as part of a golf package. Typically, the greens fees, cart fees, lodging, maid service, and meals are included as part of a golfing package. The course earns a certain percentage of this total. The nonpackage play includes play by local residents and visitors to the area who wish to play golf. The following data, beginning with July 2010 and ending with June 2013, report the package and nonpackage play by month, as well as the total amount, in thousands of dollars.

Using statistical software:
a. Develop a seasonal index for each month for the package sales. What do you note about the various months?
b. Develop a seasonal index for each month for the nonpackage sales. What do you note about the various months?
c. Develop a seasonal index for each month for the total sales. What do you note about the various months?
d. Compare the indexes for package sales, nonpackage sales, and total sales. Are the busiest months thesame?