The data in the table describe retail furniture store sales ($ billions) versus housing starts over a 5-year time period.

a. Determine the least-squares regression equation for predicting retail furniture store sales on the basis of housing starts.
b. Determine and interpret the coefficients of correlation and determination.
c. If there were 1.80 million housing starts in a year, what would be the prediction for retail furniture store sales?

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2001 2002 2003 2004 2005 Retail Furniture Store Sales ($ billions) 50.6 51.3 52.1 56.5 59.8 Housing Starts (millions) 27 1.36 1.50 61 1.72