The table shows the retail sales (in millions of dollars) of running shoes in the United
Chapter 5, Problem 59(choose chapter or problem)
The table shows the retail sales (in millions of dollars) of running shoes in the United States during the years 1999 to 2005. Find the least squares regression line and least squares cubic regression polynomial for the data. Let represent the year, with corresponding to 1999. Which model is the better fit for the data? Use the model to predict the sales in the year 2010. (Source: National Sporting Goods Association) Year 1999 2000 2001 2002 Sales, y 1502 1638 1670 1733 Year 2003 2004 2005 Sales, y 1802 1989 2049
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