In a study of the effect of radiation from nuclear weapons plants on people living in areas near them, researchers compared death rates in the areas near the plants with death rates in areas that had no such plants. Finding no difference in these rates, the researchers concluded that radiation from the nuclear weapons plants poses no health hazards to people living near them.
Which one of the following, if true, most seriously weakens the researchers’ argument?
(A) Nuclear power plants were
...
Which one of the following, if true, most seriously weakens the researchers’ argument?
(A) Nuclear power plants were
...
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