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Hypothesis Testing

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Radon is a gas produced when radium decays, and it can enter homes where it can become a health threat.

Among 186 homes in Hyde Park, New York (home of Franklin D. Roosevelt), 16% were found to have unsafe radon levels (above 4 picocurries per liter). Among 237 homes in LaGrange, New York (home of the author), 19% were found to have unsafe radon levels (based on data from the New York State Department of Health).

Use a 0.05 significance level to test the claim that two Dutchess County regions have different rates of unsafe radon levels. Does the presence of unsafe radon levels appear to vary by region?

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*** NO, the presence of unsafe radon levels do not appear to vary by region. ***

Radon is a gas produced when radium decays, and it can enter homes where it can become a health threat.

Among 186 homes in Hyde Park, New York (home of Franklin D. Roosevelt), 16% were found to have unsafe radon levels (above 4 picocurries per liter).

Among 237 homes in LaGrange, New York (home of the author), 19% were found to have unsafe radon levels (based on data from the New York State Department of Health).

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