100 12010003) Scatter diagram 1 S b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? Negative relationship c. Develop the estimated regression equation that could be used to predict the price ($1000s) (to 4 decimals). S 16.469 .0588 S I d. Test for a significant relationship at the 0.05 level of significance (to 3 decimals). p-value= less than a = 0.05. e. Did the estimated regression equation provide a good fit? Yes f. Provide an interpretation for the slope of the estimated regression equation (to 4 decimals but dollar value to the nearest cent). Enter negative values as negative numbers. The slope of the estimated regression is -.0588. Therefore, every additional 1,000 miles on the car's odometr will result in a $ decrease in the predicted price. g. Suppose that you are considering purchasing a previously owned 2007 Camry that has been driven 60,000 miles. Using the estimated regression equation developed in part (c), predict the price for this car (round to nearest dollar). $ 12943 Is this the price you would offer the seller? No
100 12010003) Scatter diagram 1 S b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? Negative relationship c. Develop the estimated regression equation that could be used to predict the price ($1000s) (to 4 decimals). S 16.469 .0588 S I d. Test for a significant relationship at the 0.05 level of significance (to 3 decimals). p-value= less than a = 0.05. e. Did the estimated regression equation provide a good fit? Yes f. Provide an interpretation for the slope of the estimated regression equation (to 4 decimals but dollar value to the nearest cent). Enter negative values as negative numbers. The slope of the estimated regression is -.0588. Therefore, every additional 1,000 miles on the car's odometr will result in a $ decrease in the predicted price. g. Suppose that you are considering purchasing a previously owned 2007 Camry that has been driven 60,000 miles. Using the estimated regression equation developed in part (c), predict the price for this car (round to nearest dollar). $ 12943 Is this the price you would offer the seller? No
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:16
20
40
60
80
100
Miles (1000s)
120
Scatter diagram 1
b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?
Negative relationship
c. Develop the estimated regression equation that could be used to predict the price ($1000s) (to 4 decimals).
16.469
.0588
I
d. Test for a significant relationship at the 0.05 level of significance (to 3 decimals).
p-value=
less than
α = 0.05.
e. Did the estimated regression equation provide a good fit?
Yes
f. Provide terpretation for the slope of the estimated regression equation (to 4 decimals but dollar value to the nearest cent). Enter negative values as negative numbers.
The slope of the estimated regression is -.0588. Therefore, every additional 1,000 miles on the car's odometr will result in a $
predicted price.
decrease
in the
g. Suppose that you are considering purchasing a previously owned 2007 Camry that has been driven 60,000 miles. Using the estimated regression equation developed in part (c), predict
the price for this car (round to nearest dollar).
$
12943
Is this the price you would offer the seller?
S
No
O
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F3
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Transcribed Image Text:The Toyota Camry is one of the best-selling cars in North America. The cost of a previously owned Camry depends upon many factors, including the model year, mileage, and condition. To
investigate the relationship between the car's mileage and the sales price for a 2007 model year Camry, the following data show the mileage and sale price for 19 sales (PriceHub website).
C
Click on the datafile logo to reference the data.
DATA file
Miles (1000s)
Price ($1000s)
22
16.2
29
16.0
36
13.8
47
11.5
63
12.5
77
12.9
73
11.2
87
13.0
92
11.8
101
10.8
110
8.3
28
12.5
59
11.1
15.0
68
68
12.2
13.0
91
15.6
42
12.7
65
8.3
110
If your answer is zero, enter "0".
a. Select a scatter diagram with the car mileage on the horizontal axis and the price on the vertical axis.
DA
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