Question: Exercise 7.7.1 In the mid-1970s, a study on the prices of various motor oils was conducted in (what passes for) a large town in Montana.

Exercise 7.7.1 In the mid-1970s, a study on the prices of various motor oils was conducted in (what passes for) a large town in Montana. The study consisted of pricing 4 brands of oil at each of 9 stores. The data follow.

Brand Store P H V Q 1 87 95 95 82 2 96 104 106 97 3 75 87 81 70 4 81 94 91 77 5 70 85 87 65 6 85 98 97 83 7 110 123 128 112 8 83 98 95 78 9 105 120 119 98

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