Suppose you want to compare the means of two populations. Which of the following

Question

Suppose you want to compare the means of two populations. Which of the following would lead us to believe that a t-procedures was not safe to use?

A.

Some subjects did not follow protocol, and these could be outliers in the data.

B.

The sample medians and means for the two groups were slightly different.

C.

The two population distributions are heavily skewed, and far from Normal.

The two population distributions being studied are slightly non-Normal.

The two population distributions being studied are slightly non-Normal.

Explanation / Answer

C.

The two population distributions are heavily skewed, and far from Normal.

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