Here is the trend separating cabs vs coupes (please see the legend). All the cars are in the 2 plots with diamond or square points, and there is a linear trendline for each category. This data suggests that coupes are more valuable, but I don't believe the data. The trendline for coupes (green) is heavily weighted by the 2 cars asking $29K range which are both coupes, and might be anomalous because the asking price is considerably higher than the remainder of the cars. My conclusion from the data would be that the difference in asking price between coupes and cabs is not significant.
I also added the plot of asking price vs car year in case anyone is interested (mentioned in previous post). The really low R-Squared value indicates little correlation. Of course the year is a factor, but the data indicates that mileage is a much more significant factor than year.
I don't think I'll get to the task for comparing to excellence market value....now where is that issue again? In the garage, the kitchen, the nightstand, the closet...oh...I know, it is probably in the bag I took to the last soccer dad outing...on no wait, I think I lent it to my friend considering a Boxster purchase... no, my other friend who want to buy a 993...oh sure...I'll probably get those copies back this week <img src="/forum/images/smilies/968/laugh.gif" class="smilie" alt="" />
Roland
