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A researcher wants to compare two groups of asthmatic children, those who recieved the flu vaccine...

A researcher wants to compare two groups of asthmatic children, those who recieved the flu vaccine versus those who did not, on number of emergency visits in the past year (not normally distributed, n =345).
a. Mann Whitney U test
b. Independent t test

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Answer #1

Option a) is correct.

a. Mann Whitney U test

Since, we have given not normally distributed.

Therefore, Mann Whitney U test is alternative test of independent t test when data is not normally distributed.

Mann Whitney U test is non-parametric test.

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