Fran's Convenience Marts is located throughout the Erie, Pennsylvania metro area. Fran, the owner, wants to expand her businesses to other communities in northwest Pennsylvania and southeast New York, such as Jamestown, Corry, Meadville, and Warren. To prepare your presentation to the local bank, you would like to better understand the factors that make a particular discount store productive. Fran must do all the work of her on her own of her, so she won't be able to study all the discount stores. Therefore, I have selects a random sample of 15 stores and records the average daily sales, the floor space (area), the number of parking spaces and the average income of the families in the region for each of the stores. The sample information is reported below

Sampled Mart Dally sales Store area Parking Spaces Income(Thousands of Dollars) $1840 532 5 44 2 1746 478 4 51 1812 530 45 4 1806 508 46 5 1792 514 5 44 6 1825 556 6 46 1811 541 49 1803 513 5 52 9 1830 532 5 46 10 1827 537 5 46 11 1764 499 48 12 1825 510 47 13 1763 490 4 48 14 1846 516 45 15 1815 482 43