Dr. Hart intended to answer the question of whether or not radon isdeadly in Montana. Instead he answered the question, “DoEnvironmental Protection Agency (EPA) county zone designations correlateto statistically different rates of lung cancer deaths in Montana?”Based on a non-significant student t-test comparing mean cancer mortalityfor EPA zone 1 and 2 designated counties, Dr. Hart concluded the“notion” that radon is deadly in Montana should be questioned. Dr.Hart’s analysis is flawed.
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