00:01
For this problem, we know that we are doing one -way anova.
00:09
Our null hypothesis here is going to be that the mean value for each one of the different treatments, or each one of the different groups, are all equal.
00:18
We're told that there are three different types of chips ahoy cookies, so the null hypothesis is that the mean value for type 1 is equal to the mean value for type 2, is equal to the mean value for type 3, and the alternate hypothesis is most easily written in words.
00:33
I'll note that in your notation that's h1.
00:36
It would be that not all means are the same.
00:49
Then, the test statistic for an anova test is the f score.
01:04
So if we look at our table of values, i can't copy it all down, but we have our labels in the first row.
01:10
Source, df, ss, ms, f stat, p value.
01:16
As i said, not copying down everything, but we can see under f stat we have 60 .3412...