The National Association of Realtors reports that the median price of an existing single-family home in Denver, Colorado, is $225,100 and the median price of an existing single-family home in Hartford, Connecticut, is $233,700. Suppose a survey of 13 randomly selected single-family homes is taken in Denver and a survey of 15 randomly selected single-family homes is taken in Hartford with the resulting prices shown here. Use a Mann-Whitney U test to determine whether there is a significant difference in the price of a single-family home in these two cities. Let a = .05.

Denver Hartford

$234,157 .........$243,947

238,057 ........234,127

235,062 ........235,238

237,016 ........237,359

235,940 ........240,031

236,981 ........239,114

240,479 ........242,012

240,102 ........244,500

239,638 ........236,419

241,861 ........237,867

241,408 ........237,741

232,405 ........234,514

241,730 ........242,136

236,333

243,968