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Statement of a problem № m66902

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(a) Use a graphing calculator to fit a regression line to the data in Exercise 66. In Exercise 66 Year, x Credit-Card Debt Per Household, y 1992, 0 .............................................. $ 3,803 1996, 0 ........................................ 6,912 2000, 8 ........................................ 8,308 2004, 12 ........................................ 9,577 2008, 16 ........................................ 10,691 2011, 19 ........................................ 14,750 (b) Estimate average credit-card debt per U.S. house hold in 2014 and compare the result with the estimate found with the model in Exercise 66. (c) Find the correlation coefficient for the regression line and determine whether the line fits the data closely.




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