sums of squares

  1. J

    correlation between group/factor level & individual scores with group means and MSE

    Hi everyone, I've been working on this problem for a couple hours now, and I'm stumped. Essentially what we have are 4 groups of 25 people each. The groups are formed around a sales goal for each group ($10k, $20k, $30k, $40k). We don't know the individual scores within those groups, but...
  2. C

    Multiple Linear Regression Proof

    Hi everyone, I am enrolled in a regression analysis course at university and the prof really loves to ask for proofs on his assignments. Unfortunately, he never does any in class, and no one at the help centres on campus can ever figure out his problems either. Here is the one I am...