One versus two-tailed test question

elquicko

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Nov 17, 2013
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Identify whether the following tests are one or two-tailed tests:
A t-test to determine whether or not a sample of male hamsters weigh significantly more than a sample of female hamsters.

At first, I thought it was one tailed because we were only interested in whether the weight of males is more, and not interested in whether it is less. But now I am second guessing myself.

Any help?
 
What's the null hypothesis? What's the alternative hypothesis?

What made you start to second-guess yourself?
 
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