Alternative Hypothesis
In
hypothesis testing, the null
hypothesis and an alternative hypothesis
are put forward. If the data are sufficiently strong to reject the
null hypothesis, then the null hypothesis is rejected in favor of an
alternative hypothesis. For instance, if the null hypothesis were
that µ
1= µ
2 then the alternative
hypothesis (for
a two-tailed test) would
be µ
1 ≠ µ
2.