answer all 3 questions with explanation

Consider the additive model Yak : a + 053- + 53- + 63-3-16. The data are presented in the following table: Treatment 2 Treatment 1 1 2 1 3 11, 17 2 2, 6 14, 15, 16 (a) Calculate the means and least squares means for both levels of Treatment 1. Which set of means is appropriate for this problem. Explain. (b) Show that all cell means are estimable using this effects model