Using the Nassau County apartment rent data and the results of Problem 3, do the following:

(a) Find the least-squares regression line treating square footage as the explanatory variable.
(b) Are there any outliers or influential observations?

Nassau County (Long Island) Queens (New York City) Rent per Month, y Rent per Month, y Square Footage, x Square Footage, x 500 650 1100 1875 588 1215 588 1075 2000 1000 1250 1775 1655 688 556 1050 825 1250 825 1300 1805 1475 460 743 1259 2700 660 1315 650 1200 975 1400 560 1250 1429 1900 1073 2350 800 1650 1452 3300 1906 4625 1305 3100 1077 1395