how do I input a one-way anova function?

I have 4 sample sizes. The first one has 11 observations, the second and fourth ones have 9 and the third one has 8. I am told that as inputs I have to include these 4 samples and the level of significance which in this case is 0.05. How do i make this function in such a way that gives me one-way anova results please?

Thank you in advance

Answer 1

[Jeff Miller]

scores = [];  % list the 37 scores inside the brackets, all of group 1 first, then group 2, etc
group = {'a' 'a' 'a' }  % list 37 group codes, i.e. 11 a's for group 1, then 9 'b's for group 2, etc
[p,tbl,stats] = anova1(scores,group);

The p value is part of the output and you can just check whether it is less than 0.05

[Valentina Richard]

Hi Jeff, thank you so much for your reply.

Is there a way to use the 'if' operator with regards to the acception/rejection of null hypothesis please?

[Jeff Miller]

Please accept my answer if it has given you the anova results you were after.

For conditioning on the test result, you can use for example

rejectH0 = p<0.05;
if rejectH0
    % commands if H0 rejected
else
    % commands if H0 not rejected
end

[Valentina Richard]

I will let you know when I try it out. Many thanks