a.) Interpret the results shown in the graph of the residuals plotted against the treatment levels.

Homework 2 Analysis Analysis Using Proc Mixed to Model the Variances Plot of StudentResid salt. Legend: A = 1 obs, B = 2 obs, etc. 1.5 - 1.0 0.5 A A -0.5 A A -1.5 -2.0 Sff ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff ff 50 106 150 200 saltHomework 2 Analysis Analysis Using Square-Root Transformed Response (SqrtWeight) Plot of residuals*salt. Legend: A = 1 obs, B = 2 obs, etc. 2 A 1 A residuals A A A 2 - 3 .4 Sff ffffffffff ff ffff ffffffffffffffff ffffffffffffffff ffffffffffffffff ff 50 190 150 200 salt