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

I Question on level of significance (los)

  1. Mar 8, 2016 #1
    Suppose the value of P=0.03.
    Suppose we assume los is 5%.
    Then we will accept null hypothesis.
    If suppose we assume los is 1%,then we reject it.
    So based on what factors do we assume los and what los do industries follow?
  2. jcsd
  3. Mar 8, 2016 #2
    No, we don't. We can only accept the null hypothesis if the power is high enough. And the power is not so easy to know in most cases. The only thing we can conclusively do in hypothesis tests is to reject the null hypothesis, not to accept it.

    It's usually 0.05 or 0.01. It's usually more informative to give a confidence interval and p-value anyway, than just saying we accept/reject.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted