Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

P-Value confidence

  1. Apr 25, 2004 #1
    I think I'm confused with the concept of the P-Value. Take the hypothesis:

    Ho: u = 5
    Ha: u != 5

    And then take another hypothesis:

    Ho: u = 5
    Ha: u > 5

    I won't compute the p values, but it is easy to see that with the same statistic test, the p value for the first hypothesis will be twice that of the second, meaning that the statistic supports the second hypothesis much better than the first hypothesis. How can this be, especially when the second hypothesis is a sub case of the first hypothesis? What am I missing?

  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted