According to a Boston Globe analysis of test data, FAA agents, posing as passengers, slipped 234 guns and other weapons past screeners at Logan -- the worst record of any major U.S. airport in the past 10 years.

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We state hypotheses and use econometric data analysis to test them.

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The test also includes basic math and data analysis.

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Actually, said Jennifer Nayar, head of global data products at the firm, most are taking both so they can test the value of the analysis NYSE Technologies performs.

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