The Toyota Camry is one of the best-selling cars in North America.
The cost of a previously owned Camry dep
mileage, and condition. To investigate the relationship between the car’s mileage and the sales price for Cam
price for 19 sales (PriceHub web site, February 24, 2012).
 Miles (1,000s)     Price ($1,000s)
       22                16.2                  a. Develop a scatter chart for these data with miles as the inde
       29                  16                  scatter chart indicate about the relationship between price an
       36                13.8
       47                11.5
       63                12.5                                                        Toyota Camry Scatter Chart
       77                12.9                                         18
       73                11.2                                         16
       87                  13                                         14
       92                11.8                                         12
                                                    Price ($1,000s)
      101                10.8                                         10
      110                 8.3                                         8
       28                12.5                                         6
       59                11.1                                         4
       68                  15                                         2
       68                12.2                                         0
                                                                           0   20             40             60          80
       91                  13
                                                                                                        Miles (1,000s)
       42                15.6
       65                12.7
      110                 8.3                  b. Develop an estimated regression equation showing how pri
                                               estimated regression model?
                                             SUMMARY OUTPUT
                                                        Regression Statistics
                                             Multiple R                 0.73393282868
                                             R Square                   0.53865739701
                                             Adjusted R Square          0.51151959683
                                             Standard Error               1.5413769786
                                             Observations                           19
                                             ANOVA
                                                                                         df
                                             Regression                                             1
                                             Residual                                              17
                                             Total                                                 18
                                                                                     Coefficients
                                             Intercept                              16.4697550331
                                             X Variable 1                           -0.0587739319
 of a previously owned Camry depends on many factors, including the model year,
mileage and the sales price for Camrys, the following data show the mileage and sale
or these data with miles as the independent variable. What does the
 the relationship between price and miles?
oyota Camry Scatter Chart
                                                              The scatter chart indicates that there may be a
                                                              negative linear relationship betweeb miles and
                                                              price.
     40          60          80        100         120
            Miles (1,000s)
gression equation showing how price is related to miles. What is the
 ?
                             y = 16.46975503 + -0.058773932 (x)
                  SS           MS             F      Significance F
            47.1580375885 47.1580375885 19.848970569 0.00034751105
            40.3893308325 2.37584299015
            87.5473684211
            Standard Error     t Stat      P-value    Lower 95%       Upper 95%       Lower 95.0%
            0.94876415329 17.3591666338 2.986768E-12 14.4680376428 18.47147242341 14.468037642821
            0.01319215518 -4.45521835259 0.000347511 -0.0866069464 -0.030940917373 -0.0866069463959
e may be a
 miles and
               Upper 95.0%
             18.47147242341
             -0.03094091737