Always need to think about what you're testing.
Here a higher number of groups are better, so if you have more than the critical value, you don't have significant data to reject H1.
Strictly speaking, a hypothesis test is a test of whether you have significant data to accept/reject H1 in favour of H0.
If you reject H1, it's not that you have significant data to accept H0.
You don't have significant data to accept H1. A very subtle difference.
Significant = Accept H1
Not Significant = Reject H1
"Accepting H0" is more saying "We can't find a reason not to" rather than "We have a specific reason to accept H0"
Last edited by a moderator: Mar 21, 2009