Recent content by ozill

Hey, thanks for helping! It's a sample of 120 people, so n=120 So in this sample : 60 workers, 30 students, 30 retirees

Right, but I'm still at a loss! :)

Hey everyone! Exam practice, that time of year. In this problem 13 with correct answer C, I'm not sure how they get the test statistic: http://i.imgur.com/doar3.jpgI think they want you to use a F-test, that tests the entire model, which is calculated by: F= ((R^2)/ K)/ ((1 - R^2)/(n-K-1))...