Andy.def SALES PRICE ADVERT obs: 75 a sample of hamburger franchises in 75 cities from Big Andy's Burger Barn. SALES = S Monthly sales revenue ($1000s) PRICE = P A price index for all products sold in a given month. ADVERT = A Expenditure on advertising ($1000s) Data source: Courtesy of hamburger franchise, called Big Andy's Burger Barn Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- SALES | 75 77.37467 6.488537 62.4 91.2 PRICE | 75 5.6872 .518432 4.83 6.49 ADVERT | 75 1.844 .8316769 .5 3.1