1. The data below depict the annual sales amounts for U.S. manufacturing corporations. Manufacturing Sales (trillion...

 

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1. The data below depict the annual sales amounts for U.S. manufacturing corporations. Manufacturing Sales (trillion dollars) 5.11 5.75 6.48 6.67 Year 2009 2010 2011 2012 2013 2014 6.74 6.90 a. Use "years after 2008" as the input variable, and then find a logarithmic model for these data. Round all coefficients using 4-digit rounding. Be sure to give a complete model. b. Use the model to estimate Manufacturing Sales in 2015. 2. a. Using the data set from Problem #1, find a quadratic model for these data. (Note: Give coefficients as they appear on the calculator for this one since they are all given to four digits or fewer.) Be sure to give a complete model. b. Use the model to estimate Manufacturing Sales in 2015. c. Which model (logarithmic or quadratic) appears to give a more reliable result for 2015? Why? 3. Suppose that an investment earns 4.73% interest compounded continuously. Determine the amount of time it would take for the investment to double in size. D 1. The data below depict the annual sales amounts for U.S. manufacturing corporations. Manufacturing Sales (trillion dollars) 5.11 5.75 6.48 6.67 Year 2009 2010 2011 2012 2013 2014 6.74 6.90 a. Use "years after 2008" as the input variable, and then find a logarithmic model for these data. Round all coefficients using 4-digit rounding. Be sure to give a complete model. b. Use the model to estimate Manufacturing Sales in 2015. 2. a. Using the data set from Problem #1, find a quadratic model for these data. (Note: Give coefficients as they appear on the calculator for this one since they are all given to four digits or fewer.) Be sure to give a complete model. b. Use the model to estimate Manufacturing Sales in 2015. c. Which model (logarithmic or quadratic) appears to give a more reliable result for 2015? Why? 3. Suppose that an investment earns 4.73% interest compounded continuously. Determine the amount of time it would take for the investment to double in size. D

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1 Logarithmic Model Using the given data we can create a logarithmic model using the years after 2008 as the input variable Let x represent the years ... View the full answer