(a) How would you describe the relationship between x and y? a. There is a moderate negative linear relationship between quality rating and satisfaction rating. b. There is a strong positive linear relationship between quality rating and satisfaction rating. c. There may be a weak positive linear relationship between quality rating and satisfaction rating. d. There is a curved relationship between quality rating and satisfaction rating. e. There is a strong negative linear relationship between quality rating and satisfaction rating. (b) Calculate the value of the correlation coefficient. (Round your answer to four decimal places.) r = Interpret this value. a. There is a strong positive linear relationship between quality rating and satisfaction rating. b. There is no correlation between quality rating and satisfaction rating. c. There is a weak positive linear relationship between quality rating and satisfaction rating. d. There is a weak negative linear relationship between quality rating and satisfaction rating. e. There is a strong negative linear relationship between quality rating and satisfaction rating.
(a) How would you describe the relationship between x and y? a. There is a moderate negative linear relationship between quality rating and satisfaction rating. b. There is a strong positive linear relationship between quality rating and satisfaction rating. c. There may be a weak positive linear relationship between quality rating and satisfaction rating. d. There is a curved relationship between quality rating and satisfaction rating. e. There is a strong negative linear relationship between quality rating and satisfaction rating. (b) Calculate the value of the correlation coefficient. (Round your answer to four decimal places.) r = Interpret this value. a. There is a strong positive linear relationship between quality rating and satisfaction rating. b. There is no correlation between quality rating and satisfaction rating. c. There is a weak positive linear relationship between quality rating and satisfaction rating. d. There is a weak negative linear relationship between quality rating and satisfaction rating. e. There is a strong negative linear relationship between quality rating and satisfaction rating.
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
(a) How would you describe the relationship between x and y?
a. There is a moderate negative linear relationship between quality rating and satisfaction rating.
b. There is a strong positive linear relationship between quality rating and satisfaction rating.
c. There may be a weak positive linear relationship between quality rating and satisfaction rating.
d. There is a curved relationship between quality rating and satisfaction rating.
e. There is a strong negative linear relationship between quality rating and satisfaction rating.
(b)
Calculate the value of the correlation coefficient . (Round your answer to four decimal places.)
r =
Interpret this value.
a. There is a strong positive linear relationship between quality rating and satisfaction rating.
b. There is no correlation between quality rating and satisfaction rating.
c. There is a weak positive linear relationship between quality rating and satisfaction rating.
d. There is a weak negative linear relationship between quality rating and satisfaction rating.
e. There is a strong negative linear relationship between quality rating and satisfaction rating.
Transcribed Image Text:Each year a market research company surveys new car owners 90 days after they purchase their cars. This data is used to rate auto brands (such as Toyota and Ford) on quality and customer
satisfaction. Suppose the following were the quality rating and satisfaction scores for 30 brands sold in the United States.
Brand
Acura
Audi
BMW
Buick
Cadillac
Chevrolet
Chrysler
Dodge
Fiat
Ford
GMC
Honda
Hyundai
Infiniti
Jeep
Kia
LandRover
Lexus
Lincoln
Mazda
Quality Rating
64
80
76
74
58
64
58
58
38
66
60
71
70
63
43
72
55
76
65
74
Satisfaction Rating
814
853
849
792
826
791
783
790
768
789
791
783
804
831
762
791
848
844
835
790
Transcribed Image Text:Mazda
Mercedes-Benz
MINI
Mitsubishi
Nissan
Porsche
Scion
Subaru
Toyota
Volkswagen
Volvo
74
67
68
51
63
76
65
78
72
67
69
790
842
795
748
786
882
779
766
783
796
812
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