12.110 A major real estate developer has asked you to determine the effect of the interval between house sales, and the initial house sales price on second or final sales price with adjustments for the four major U.S. market areas identified in the data set. The data on housing prices are stored in the data file House Selling Price from the work of Robert Shiller. The data set includes the first and second sales price and the relative date of the house sales. Write a short report on the results of your analysis.