Healthy cereal? Researchers collected data on 77 brands of cereal at a local supermarket.25 For each brand,

Question:

Healthy cereal? Researchers collected data on 77 brands of cereal at a local supermarket.25 For each brand, the sugar content (grams per serving) and the shelf in the store on which the cereal was located (1 =

bottom, 2 = middle, 3 = top) were recorded. A dotplot of the data is shown below. Compare the three distributions.

Critics claim that supermarkets tend to put sugary kids’ cereals on lower shelves, where the kids can see them. Do the data from this study support this claim?

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