Take a sample, for instance, that in Prob. 4, and investigate and graph the effect of changing y-values

(a) For small x

(b) For large x

(c) In the middle of the sample.

Data from Prob. 4

Find and graph the sample regression line of y on x and the given data as points on the same axes. Show the details of your work.

x = Deformation of a certain steel [mm], y = Brinell hardness [kg/mm²]

x 6 9 y 11 11 13 22 26 28 68 67 65 33 35 53 44 40 37 34 32