A national consumer protection society investigated seven brands of paint to determine their quality relative to price. The society’s conclusions were ranked according to the following table: Brand  T U V  W X Y Z price/liter 1.92 1.58 1.35 1.6 2.05 1.39 1.77 quality ranking  2 6 7 4 3 5 1 Using Spearman’s rank correlation coefficient, determine whether the consumer generally gets value for money

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A national consumer protection society investigated seven brands of paint to
determine their quality relative to price. The society’s conclusions were ranked according to the following table:

Brand  T U W X Y Z
price/liter 1.92 1.58 1.35 1.6 2.05 1.39 1.77
quality ranking  2 6 7 4 3 5 1

Using Spearman’s rank correlation coefficient, determine whether the consumer
generally gets value for money

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