The accompanying table gives data from a survey of new car owners conducted by J.D. Power and Associates (USA TODAY, usatoday.com, March 29, 2016). For each brand of car sold in the United States, data on a quality rating (defects per 100 cars, so lower numbers indicate higher quality) and a customer satisfaction rating (called the APEAL rating) are given in the accompanying table. The APEAL rating is a score between O and 1000, with higher values indicating greater satisfaction. Brand Quality Rating APEAL Rating Acura 64 814 Audi 80 858 BMW 76 849 Buick 74 792 Cadillac 58 826 Chevrolet 64 791 Chrysler 58 783 Dodge 58 790 Fiat 38 768 Ford 66 789 GMC 60 791 Honda 71 783 Hyundai 70 804 Infiniti 63 826 Jeep 43 762 Kia 72 791 Land Rover 55 853 Lexus 76 844 Lincoln 65 835 Mazda 74 790 Mercedes-Benz 67 842 MINI 68 795 Mitsubishi 51 748 Nissan 63 786 Porsche 76 882 Scion 65 779 Subaru 78 766 Toyota 72 783 Volkswagen 67 796 Volvo 69 812 Construct a scatterplot of x = quality rating and y = APEAL rating. (Hint: See Example 3.21.) Does customer satisfaction (as measured by the APEAL rating) appear to be related to car quality? Explain
The accompanying table gives data from a survey of new car owners conducted by J.D. Power and Associates (USA TODAY, usatoday.com, March 29, 2016). For each brand of car sold in the United States, data on a quality rating (defects per 100 cars, so lower numbers indicate higher quality) and a customer satisfaction rating (called the APEAL rating) are given in the accompanying table. The APEAL rating is a score between O and 1000, with higher values indicating greater satisfaction.
Brand |
Quality Rating |
APEAL Rating |
Acura |
64 |
814 |
Audi |
80 |
858 |
BMW |
76 |
849 |
Buick |
74 |
792 |
Cadillac |
58 |
826 |
Chevrolet |
64 |
791 |
Chrysler |
58 |
783 |
Dodge |
58 |
790 |
Fiat |
38 |
768 |
Ford |
66 |
789 |
GMC |
60 |
791 |
Honda |
71 |
783 |
Hyundai |
70 |
804 |
Infiniti |
63 |
826 |
Jeep |
43 |
762 |
Kia |
72 |
791 |
Land Rover |
55 |
853 |
Lexus |
76 |
844 |
Lincoln |
65 |
835 |
Mazda |
74 |
790 |
Mercedes-Benz |
67 |
842 |
MINI |
68 |
795 |
Mitsubishi |
51 |
748 |
Nissan |
63 |
786 |
Porsche |
76 |
882 |
Scion |
65 |
779 |
Subaru |
78 |
766 |
Toyota |
72 |
783 |
Volkswagen |
67 |
796 |
Volvo |
69 |
812 |
- Construct a scatterplot of x = quality rating and y = APEAL rating. (Hint: See Example 3.21.)
- Does customer satisfaction (as measured by the APEAL rating) appear to be related to car quality? Explain.
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