count shboard Courses Groups Calendar 43 Inbox History ? Help 1 esc 1 2 3 4 5 Slide 55 of 55 English (United States) X ACCESSIDIlity: investigate S ! 1 Used Car Auctions Used car auctions give car dealers an opportunity to increase their used car inventory by purchasing cars used as rental cars, assigned to company executives, and other similar activities. Suppose population 1 is all black cars sold at used car auctions, and population 2 is all white cars sold at used car auctions. Of interest is to estimate the difference in the mean sale price of all black cars sold at used car auctions and the mean sale price of all white cars sold at used car auctions. Q To estimate the parameter the following was done. A group of 12 black sports cars being sold at used car auctions was selected. The distribution of the costs of these cars is heavily skewed to the right, with a mean of $125,310 and a standard deviation of $42,255. A group of 24 white compact cars being sold at used car auctions was selected. The distr