Recent content by ozill

  1. O

    [Statistics] Obtaining test statistic in short problem

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

    [Statistics] Obtaining test statistic in short problem

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

    [Statistics] Obtaining test statistic in short problem

    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))...