(b) Develop a 99% condence interval estimate of the difference (in dollars) between the resale prices of houses in 2006 and 2009. (Use year 2006 7 year 2009. Round your answers to the nearest dollar.) 3; 21993 x to$ 87816 x Home values tend to increase over time under normal conditions, but the recession of 2008 and 2009 has reportedly caused the sales price of existing homes to fall nationwide.t You would like to see if the data support this conclusion. The fie HomePrices contains data on 30 existing home sales in 2006 and 40 existing home sales in 2009. 2006 ($) 2009 ($) 213,100 226,200 239,100 155,400 189,800 200,800 280,400 214,300 161,700 161,200 213,200 181,100 117,400 130,000 228,600 222,100 228,900 170,000 149,600 146,200 54,400 235,800 219,400 238,800 213,800 186,000 182,100 180,000 301,600 264,200 320,200 215,700 164,200 95,300 239,500 315,000 118,900 172,400 207,200 188,200 169,400 185,600 137,500 212,800 175,400 177,000 178,000 161,200 249,200 311,400 296,900 292,500 146,400 99,800 246,700 173,500 287,700 246,500 195,600 138,100 112,200 137,500 147,900 155,300 152,400 211,200 179,000 116,200 197,500 164,200