1. Suppose we were interested in knowing how the amount of fertilizer influences the corn yield. The yield per plot in bushels of corn was observed on 10 plots that had been fertilized in varying degrees. The data are given in the following table: Yield (in bushels) Fertilizer (in pounds) 12 13 13 14 15 15 14 16 17 18 x; = 40, Ey: = 147, Ex7 = 180, Ey7 = 2 193, Exy = 6113. Refers to question 1. 2] Perform the Lack-of-Fit test at o = 0.10, using following results: Fertilizer X; Corn yield y; 2 12, 13 2 12.5 0.5 3 13, 14 13.5 0.5 15, 15 NNN 15 0 5 14, 16 15 2 17, 18 2 17.5 0.5 it: SSPE = __( - y.) = 3.5 mparing results from Q.1, what can you conclude about the goodness of the model