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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