| The data is for weekly sales in the sporting goods department at
a Wal*Mart store in the Northeast.
Peak values, I.e. spikes, usually occur at holiday periods or other
seasonal times. Week 1 is the first
week of February 2003. To show
continuity, week 1 of 2004 is represented as week 53 since week 53 represents
the start of the 2004 fiscal year. Dollar values are adjusted in order to
disguise true sales figures, but trends in the data are retained for analysis
purposes. Note that for 2002-2003 data, Wal*Mart used 53 weeks for their
fiscal year data. |