Assertion: null hypothesis | /r/HasProperty | no difference
Facets:
value: in quality
type: OTHER
value: in parameters
type: OTHER
value: against the alternative hypothesis
type: OTHER
value: for two or more populations
type: OTHER
Source sentences:
text: A null hypothesis (H0) is a stated assumption that there is no difference in parameters (mean, variance, DPMO) for two or more populations.
text: An example is where water quality in a stream has been observed over many years, and a test is made of the null hypothesis that "there is no change in quality between the first and second halves of the data", against the alternative hypothesis that "the quality is poorer in the second half of the record".
text: The most common null hypothesis is the "no-change" or "no-difference" hypothesis.
text: -If sampled data favors the null hypothesis (no difference or association) the P value INCREASES