Anatomy of a Significance Test
Anatomy of a Significance Test The Goal We want to test the difference between attributes of 2 sub-populations relative to randomly mixed sub-populations and provide numerical evidence. The Null Hypothesis The following equivalent statements are the null hypothesis, H0 that we are testing. H0:The sub-populations P1 and P2 were randomly draw from the same population H0:The sub-populations P1 and P2 were created randomly by assigning units in the same population to each of P1 and P2 H0:The sub-populations P1 and P2 were randomly generated. Note that that H0 is weaker to be stated in the form of a(𝒫1) = a(𝒫2), although still correct. That’s why we shouldn’t state H0 in terms of equivalence of attribute value. ...