Remainder Round all answers to two decimal places unless otherwise indicated.
Domestic Auto Sales in the United States For 2005 through 2008, the following table shows the total U.S. sales, in millions, of domestic automobiles (excluding light trucks).
Date | Domestic cars sold |
2005 | 5.53 |
2006 | 5.48 |
2007 | 5.25 |
2008 | 4.54 |
Get the equation of the regression line (rounding parameters to two decimal places), and explain in practical terms the meaning of the slope. In particular, comment on the meaning of the sign of the slope.
Plot the data points and the regression line.
In 2009, 3.62 million domestic cars were sold in the United States. How does the forecast obtained from the regression line compare with this figure?
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Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
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