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You are trying to determine if there is a significant difference in the mean age between patients who have developed a nosocomial infection in your

You are trying to determine if there is a significant difference in the mean age between patients who have developed a nosocomial infection in your hospital (N=312) and those who have not (N=4,673). What would be an appropriate test to use?

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Chi-square

McNemar's test

t-test for dependent groups

t-test for independent groups

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