00:01
All right, so we're looking for the critical f critical values.
00:05
So we get the f distribution and we are given an alpha and we're given the k number of observations and from that we can get our degrees of freedom and then we're given n observations and then we're going to get our degrees of freedom from there.
00:25
So let's go through this.
00:26
So the alpha for the first one is going to be 0 .05 and then there are k equals three observations, excuse me, three treatments.
00:34
This is treatments and then n observations and there's going to be 22 observations.
00:50
And the way we figure this out, we need our degrees of freedom for the treatments and the degrees of freedom for the observations and the degrees of freedom for both are calculated as doing n minus one.
01:02
So if there are k treatments, there'll be two degrees of freedom for the treatments and for 21 observations, degrees of freedom would be 21.
01:11
And then we're going to get our f statistic or f critical value, i should say.
01:16
The statistic is when we analyze the data.
01:18
So we have to go to our alpha equals 0 .05 table and this is the one i put together in my spreadsheet.
01:29
And so the way you do this is you have your numerator, so two, 21, your denominator right here and you look at where they cross.
01:36
It's right there, 3 .47, 3 .47...