44. Typical prices of single-family homes in the state of Florida are shown for a sample of 15 metropolitan areas (Naples Daily News, February 23, 2003). Data are in thousands of dollars.

a. Use a matched-sample analysis to develop a point estimate of the population mean one-year increase in the price of single-family homes in Florida.

b. Develop a 90% confidence interval estimate of the population mean one-year increase in the price of single-family homes in Florida.

c. What was the percentage increase over the one-year period?