Can someone help me figure out what the dependent variable is in this problem, as far as the data set below is concerned ? Is it sales, adverts, airplay, or attract ?

I asked you to imagine that I worked for a record company and that my boss was interested in predicting record sales from advertising. Before a record is released, the executive notes the amount spent on advertising, the number of times the record is played on radio the week before release, and the attractiveness of the band. He does this for 200 different records (each made by a different band). Attractiveness was measured by asking a random sample of the target audience to rate the attractiveness of each band on a scale from 0 (hideous potato-heads) to 10 (gorgeous sex objects). The mode attractiveness given by the sample was used in the regression (because he was interested in what the majority of people thought, rather than the average of people's opinions).

Copy and paste the data below into SPSS. (note the data appear out of line but they are tab delimited for easy pasting into spss). Make sure after you paste the variables into spss that they all remain scale and numeric (see data view)

Salesadverts airplayattract

33010.264310

120985.69 287

3601445.56357

2701188.19337

220574.51 445

170568.95 195

70471.81 201

210537.35 229

200514.07 217

300174.09 407