11. Use the following web-site to convert the price of gasoline to inflated prices for the current year. Add these values to the table that follows. http://www.bls.gov/data/inflation Years since 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Gas Price per Gallon $1.30 $1.47 $1.14 $1.47 $1.59 $1.82 $2.32 $2.27 $3.05 $1.79 $2.73 calculator.htm $3.09 $3.40 Gas Price Adjusted for Inflation *What you are going to do here is use the year 2000 as your baseline for all years. On the web- site, enter the price in the first field, always leave the second field 2000, and adjust "Has the same buying power as" to the year next to each price. When you click "Calculate," you will see the adjusted price. That is what you write in the last column of the table for each year. For example, when you compute the last field, it should look like this:

ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Consideration of Inflation
In all of your previous problems, you examined trends that do not take inflation into account. In
this extension, you will reproduce the analysis after adjusting the data for inflation.
11. Use the following web-site to convert the price of gasoline to inflated prices for the
current year. Add these values to the table that follows.
http://www.bls.gov/data/inflation
calculator.htm
Years since
2000
0
1
2
3
4
5
6
7
8
9
10
11
12
Gas Price per
Gallon
$1.30
$1.47
$1.14
$1.47
$1.59
$1.82
$2.32
$2.27
$3.05
$1.79
$2.73
$3.09
$3.40
Gas Price Adjusted
for Inflation
*What you are going to do here is use the year 2000 as your baseline for all years. On the web-
site, enter the price in the first field, always leave the second field 2000, and adjust "Has the
same buying power as" to the year next to each price. When you click "Calculate," you will see
the adjusted price. That is what you write in the last column of the table for each year.
For example, when you compute the last field, it should look like this:
Transcribed Image Text:Consideration of Inflation In all of your previous problems, you examined trends that do not take inflation into account. In this extension, you will reproduce the analysis after adjusting the data for inflation. 11. Use the following web-site to convert the price of gasoline to inflated prices for the current year. Add these values to the table that follows. http://www.bls.gov/data/inflation calculator.htm Years since 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Gas Price per Gallon $1.30 $1.47 $1.14 $1.47 $1.59 $1.82 $2.32 $2.27 $3.05 $1.79 $2.73 $3.09 $3.40 Gas Price Adjusted for Inflation *What you are going to do here is use the year 2000 as your baseline for all years. On the web- site, enter the price in the first field, always leave the second field 2000, and adjust "Has the same buying power as" to the year next to each price. When you click "Calculate," you will see the adjusted price. That is what you write in the last column of the table for each year. For example, when you compute the last field, it should look like this:
CPI Inflation Calculator
$
in 2000
Has the same buying power as:
$4.53
in 2012
Price ($)
12. You will now create a scatter plot using the years vs. the adjusted gasoline prices.
$4.00
$3.50
$3.00
$2.50
$2.00
$1.50
$1.00
$0.50
$0.00
Calculate
0
3.40
Average Price ($) of Regular Unleaded Gasoline at the
beginning of the year Adjusted for Inflation
1
8
5
Years since 2000
9
10
11
12
13
13. Using your calculator, find a linear regression equation for years vs. adjusted gasoline
prices. Also give the r and r²2 values for this equation.
14. Using your calculator, find a quadratic regression equation for years vs. adjusted gasoline
prices. Also give the r and r² values for this equation.
15. Now, using the new quadratic model, predict what the price of gas will be in the year
2020. Does this cause any concern?
Reflections
16. Do you believe the models that use the inflated prices are better models? Why or why
not?
17. Of all 4 models (equations) you have created in this assignment, which one do you
believe is the best model and why?
Transcribed Image Text:CPI Inflation Calculator $ in 2000 Has the same buying power as: $4.53 in 2012 Price ($) 12. You will now create a scatter plot using the years vs. the adjusted gasoline prices. $4.00 $3.50 $3.00 $2.50 $2.00 $1.50 $1.00 $0.50 $0.00 Calculate 0 3.40 Average Price ($) of Regular Unleaded Gasoline at the beginning of the year Adjusted for Inflation 1 8 5 Years since 2000 9 10 11 12 13 13. Using your calculator, find a linear regression equation for years vs. adjusted gasoline prices. Also give the r and r²2 values for this equation. 14. Using your calculator, find a quadratic regression equation for years vs. adjusted gasoline prices. Also give the r and r² values for this equation. 15. Now, using the new quadratic model, predict what the price of gas will be in the year 2020. Does this cause any concern? Reflections 16. Do you believe the models that use the inflated prices are better models? Why or why not? 17. Of all 4 models (equations) you have created in this assignment, which one do you believe is the best model and why?
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