00:01
All right, so we're looking at the f statistic, which is calculated as the sample variance of one of the samples, divided by the sample variance of the other sample.
00:14
And we put the larger variance, the larger sample variance in the numerator.
00:22
And that forces us to be a one -tailed test, and then our work's just a little easier.
00:29
We have to do with, like, adding or subtracting anything.
00:31
It's just convenient when you do that.
00:35
And we're given our sample variances of 5 .7 and 2 .35.
00:46
So we get 5 .7, 2 .35.
00:52
And that gives us an f value of 2 .43.
01:04
All right.
01:05
So what do we do with this? now to get our p value, we have to denote.
01:09
The degrees of freedom.
01:12
And the degrees of freedom, you have to consider the numerator, and that's given as the sample size of 1 minus 1, and we're told it's 21...