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 Mercedes-Benz MINI Mitsubishi Nissan Porsche Scion Subaru Toyota Volkswagen Volvo Quality Rating 64 80 76 74 58 64 58 58 38 66 60 71 70 63 43 72 55 76 65 74 67 68 51 63 76 65 78 72 67 69 Satisfaction Rating 814 853 849 792 826 791 783 790 768 789 791 783 804 821 762 791 858 844 835 790 842 795 748 786 882 779 766 783 796 812 (a) Construct a scatterplot of y= satisfaction rating versus x = quality rating.
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 Mercedes-Benz MINI Mitsubishi Nissan Porsche Scion Subaru Toyota Volkswagen Volvo Quality Rating 64 80 76 74 58 64 58 58 38 66 60 71 70 63 43 72 55 76 65 74 67 68 51 63 76 65 78 72 67 69 Satisfaction Rating 814 853 849 792 826 791 783 790 768 789 791 783 804 821 762 791 858 844 835 790 842 795 748 786 882 779 766 783 796 812 (a) Construct a scatterplot of y= satisfaction rating versus x = quality rating.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.2: Representing Data
Problem 22PFA
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Transcribed Image Text:(b) Calculate the value of the correlation coefficient. (Round your answer to four decimal places.)
r = 0.4000
X
Intornrot this valus
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
Mercedes-Benz
MINI
Mitsubishi
Nissan
Porsche
Scion
Subaru
Toyota
Volkswagen
Volvo
Quality Rating
64
80
76
74
58
64
58
58
38
66
60
71
70
63
43
72
55
76
65
74
67
68
51
63
76
65
78
72
67
69
Satisfaction Rating
814
853
849
792
826
791
783
790
768
789
791
783
804
821
762
791
858
844
835
790
842
795
748
786
882
779
766
783
796
812
(a) Construct a scatterplot of y = satisfaction rating versus x = quality rating.
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