S(t) Let S (t) be the retail sales in billions of dollars t years...
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S(t) Let S (t) be the retail sales in billions of dollars t years since 1995. Based on the data, a linear model for retail sales over time is S (t) = 9.35t + 87.854. -220 -200 180 160 140 120 -100 89 60 40 20 0 3 6 9 12 15 -20 89.01 105.586 155.392 165.305 214.799 217.908 6 15 a. Use the scatter plot to decide whether the linear model fits the data well. It does fit. It does not fit. b. Determine the estimated 2012 U.S retail sales in billions of dollars. billion c. Use the model to predict the year in which retail sales will be $300 billion.
Let S(t) be the retail sales in billions of dollars t years since 1995 . Based on the data, a linear model for retail sales over time is S(t)=9.35t+87.854. a. Use the scatter plot to decide whether the linear model fits the data well. It does fit. It does not fit. b. Determine the estimated 2012 U.S retail sales in billions of dollars. $ billion c. Use the model to predict the year in which retail sales will be $300 billion
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