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Homework Help: Statistics, testing hypothesis

  1. Sep 9, 2015 #1
    1. The problem statement, all variables and given/known data

    2. Relevant equations
    In statistics, when testing hypothesis for both sides (left and right), is it possible that Xaverage - MUo = 0 (upper part of the equation I provided)? If so how to solve this kind of task?

    3. The attempt at a solution
    If I get Xaverage = 0.1 (exactly) and MUo = 0.1 then test result is equal to 0. How to proceed with this? What is the conclusion? Do we accept Zero Hypothesis or do we reject it?
  2. jcsd
  3. Sep 9, 2015 #2


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    Homework Helper

    Of course it is possible. When this happens, it seems to confirm your null hypothesis, doesn't it? Look up the Z value of 0 on the chart, it should be right around .5. That means for a 2-tailed test, there is a p value of 1. Most tests say to let the null hypothesis stand when p < alpha using alpha of .05 or so. 1 is not less than .05.
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