A business student needs cash, so he decides to sell his car. The car is a classic BMW "8 series" that was only made over the course of a few years in the 1990s. He would like to sell it on his own, rather than through a dealer, so he'd like predict the price he'll get for his car's model year using the accompanying data. Complete parts a through f below. Click the icon to view the car data. a) Make a scatterplot for the data on used BMW 8's provded. Choose the c O B. OA. 25K- 8 20K- 15K- 10K- 1991 Year H 1997 Q Q Car Data Year 1995 1994 1997 1996 1991 1993 1992 1991 1991 1991 1991 1993 1995 1991 1993 1994 1996 1997 1992 1995 4007 Price 11,999 6988 12,990 9995 15,995 14,999 24,995 19,750 15,900 16,988 14,999 10,999 16,999 13,995 16,995 11500 7,994 12,500 14,788 12,490 40.000 - X 991 Year 1997 O D. 8 25K- 20K- 15K- 10K- 1991 Year 1997 Q
A business student needs cash, so he decides to sell his car. The car is a classic BMW "8 series" that was only made over the course of a few years in the 1990s. He would like to sell it on his own, rather than through a dealer, so he'd like predict the price he'll get for his car's model year using the accompanying data. Complete parts a through f below. Click the icon to view the car data. a) Make a scatterplot for the data on used BMW 8's provded. Choose the c O B. OA. 25K- 8 20K- 15K- 10K- 1991 Year H 1997 Q Q Car Data Year 1995 1994 1997 1996 1991 1993 1992 1991 1991 1991 1991 1993 1995 1991 1993 1994 1996 1997 1992 1995 4007 Price 11,999 6988 12,990 9995 15,995 14,999 24,995 19,750 15,900 16,988 14,999 10,999 16,999 13,995 16,995 11500 7,994 12,500 14,788 12,490 40.000 - X 991 Year 1997 O D. 8 25K- 20K- 15K- 10K- 1991 Year 1997 Q
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
Transcribed Image Text:A business student needs cash, so he decides to sell his car. The car is a classic BMW "8 series" that was only made over the course of a few years in the 1990s. He would like to sell it on his own, rather than through a dealer, so he'd like to
predict the price he'll get for his car's model year using the accompanying data. Complete parts a through f below.
Click the icon to view the car data.
a) Make a scatterplot for the data on used BMW 8's provded. Choose the c
A.
Price
25K-
20K-
15K-
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n example Get more help.
1997
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Car Data
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11,999
6988
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9995
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9,988
12900
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Done
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991
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Clear all
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Check answer
Transcribed Image Text:A magazine collected the ratings for food, decor, service and the cost per person for a sample of 30 restaurants. They combined the ratings to create a summated rating and used that to predict the cost of a restaurant meal. The data are
modeled by Y₁ = - 21.4938 + 1.0688X;, where X₁ is the summated ratings and Ỹ; is meal cost. Perform a residual analysis for these data. Evaluate whether the assumptions of regression have been seriously violated
Click the icon to view the data table.
Data table
Which of the assumptions of regression, if any, have been seriously violated? Select all that apply.
o o o o
A. The assumption of normality has been violated because the normal probability plot does not appear to be a straight line.
B. The assumption of independence of errors has been violated because the errors are not independent of one another.
C. The assumption of linearity has been violated because the data are clearly curvilinear.
D. The assumption of equal variance has been violated because the variability of the residuals is not constant for all values of X.
E. The assumptions of linearity, independence, normality, and equal variance do not appear to have been seriously violated.
instructor
Restaurant Summated
ratings (X)
65
55
58
76
56
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54
60
65
56
75
59
56
67
63
56
64
64
48
63
64
18NHUNGEREN
69
52
54
64
73
49
55
73
55
62
Meal cost
(Y)
44
30
25
72
41
38
52
67
33
61
38
51
42
35
27
48
47
37
56
45
49
39
36
45
53
32
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34
48
Done
X
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