Bonferroni Correction and Multiple Testing

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A researcher conducts 20 independent hypothesis tests at alpha = 0.05. Without correction, what is the approximate probability of at least one false positive, and how does the Bonferroni correction address this?

Multiple Choice

5% probability; Bonferroni multiplies each p-value by 20 About 64%; Bonferroni divides the significance level by the number of tests to control the family-wise error rate 100% probability; Bonferroni is needed to make any test valid About 20%; Bonferroni averages the p-values across all tests

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Bonferroni Correction and Multiple Testing

Multiple Choice

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