Year 1960 1973 1986 1995 2003 2002 2013 2015 2009 0.15 1.00 2.25 1.25 2.00 0.35 1.75 2.30 2.75 Pizza Cost Subway Fare 0.15 0.35 1.35 1.00 2.25 2.50 2.75 1.50 2.00 214.5 197.8 CPI 48.3 30.2 112.3 162.2 191.9 233.0 237.2

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Regression and Predictions. Exercises 13–28 use the same data sets as Exercises 13–28 in Section 10-1. In each case, find the regression equation, letting the first variable be the predictor (x) variable. Find the indicated predicted value by following the prediction procedure summarized in Figure 10-5 on page 493.

CPI and the Subway Use the CPI/subway fare data from the preceding exercise and find the best predicted subway fare for a time when the CPI reaches 500. What is wrong with this prediction?

Year
1960
1973
1986
1995
2003
2002
2013
2015
2009
0.15
1.00
2.25
1.25
2.00
0.35
1.75
2.30
2.75
Pizza Cost
Subway Fare
0.15
0.35
1.35
1.00
2.25
2.50
2.75
1.50
2.00
214.5
197.8
CPI
48.3
30.2
112.3
162.2
191.9
233.0
237.2
Transcribed Image Text:Year 1960 1973 1986 1995 2003 2002 2013 2015 2009 0.15 1.00 2.25 1.25 2.00 0.35 1.75 2.30 2.75 Pizza Cost Subway Fare 0.15 0.35 1.35 1.00 2.25 2.50 2.75 1.50 2.00 214.5 197.8 CPI 48.3 30.2 112.3 162.2 191.9 233.0 237.2
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