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Thread: One or two tailed test?

  1. #1
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    One or two tailed test?

    Hi, I am currently struggling to decide whether the following problem requires a one or two tailed t test for a hypothesis test. I have uploaded a photo of the data used if needed.

    'Test the individual significance of the explanatory variable. You should decide on an appropriate t-test (one tailed or two tailed) and explain why you've chosen this test.

    Thanks in advance .
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  2. #2
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    Re: One or two tailed test?

    The selection of 1- or 2-tailed is based on the a priori stated hypothesis be tested. What is the hypothesis? Write it out and it should tell you what to do.
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