The table shows the annual revenue from area Walmart stores (in millions of dollars). Amount, y 12.92 Year 2003 2004 14.70 2005 16.18 2006 2007 17.64 18.70 2008 19.07 a. Use the regression feature of a graphing utility to find a linear model, an exponential model, and a logarithmic model for the data. Let x represent the year, with x= 3 corresponding to 2003. (Round all numerical values to four decimal places.) (If using Desmos, be sure "Log Mode" is selected) Linear Model is in the form y = az + b, where a = Number and b= Number %3D Its 2 = 0.9663 Logarithmic Model is in the form y = a +b In z. where a = Number and b= Number Its 2 = Number Exponential Model is in the form y = a(b), where a- Number and b= Number %3D Its r2 = Number b. How can the coefficients of determination be uséd to determine which model best fits the data? The model that is the best fit has a coefficient of determination that is closest to 1. c. Which model is worst Exponential O Linear O Logarithmic d. Use the BEST model to estimate the revenue in 2016. Round the answer to two decimal places.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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The table shows the annual revenue from area Walmart stores (in millions of dollars).
Year
Amount, y
2003
12.92
14.70
16.18
2004
2005
2006
17.64
2007
18.70
2008
19.07
a. Use the regression feature of a graphing utility to find a linear model, an exponential model, and a logarithmic model for the data. Let x represent the year,
with x= 3 corresponding to 2003. (Round all numerical values to four decimal places.)
(If using Desmos, be sure "Log Mode" is selected)
Linear Model is in the form y = az + b, where a = Number
and b= Number
Its 2
0.9663
%3D
Logarithmic Model is in the form y = a+b In z, where a =
Number
and b= Number
Its 2 =
Number
Exponential Model is in the form y = a(b), where a= Number
and b= Number
Its r? = Number
b. How can the coefficients of determination be uséd to determine which model best fits the data?
The model that is the best fit has a coefficient of determination that is closest to 1.
C. Which model is worst
O Exponential
O Linear O Logarithmic
d. Use the BEST model to estimate the revenue in 2016. Round the answer to two decimal places.
Number
million dollars
der
Transcribed Image Text:The table shows the annual revenue from area Walmart stores (in millions of dollars). Year Amount, y 2003 12.92 14.70 16.18 2004 2005 2006 17.64 2007 18.70 2008 19.07 a. Use the regression feature of a graphing utility to find a linear model, an exponential model, and a logarithmic model for the data. Let x represent the year, with x= 3 corresponding to 2003. (Round all numerical values to four decimal places.) (If using Desmos, be sure "Log Mode" is selected) Linear Model is in the form y = az + b, where a = Number and b= Number Its 2 0.9663 %3D Logarithmic Model is in the form y = a+b In z, where a = Number and b= Number Its 2 = Number Exponential Model is in the form y = a(b), where a= Number and b= Number Its r? = Number b. How can the coefficients of determination be uséd to determine which model best fits the data? The model that is the best fit has a coefficient of determination that is closest to 1. C. Which model is worst O Exponential O Linear O Logarithmic d. Use the BEST model to estimate the revenue in 2016. Round the answer to two decimal places. Number million dollars der
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