A study was done on people convicted of using illegal drugs and their ages. The data are

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A study was done on people convicted of using illegal drugs and their ages. The data are shown. At α = 0.10, test the claim that the proportions of the type of drug used are the same for the three age groups.

Inhalants Hallucinogens Tranquilizers Age 12-17 18–25 26 and older 16 22 8. 13 18 10

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