Question: R. W. Landgraf reported the following axial (push pull) endurance strengths for steels of differing ultimate strengths: (a) Plot the data with Se as ordinate

R. W. Landgraf reported the following axial (push pull) endurance strengths for steels of differing ultimate strengths:

(a) Plot the data with Se as ordinate and Su as abscissa.
(b) Using the y = mx + b linear regression model, find the regression line and plot.

Su 65 60 30 238 109 29599 82 45 64 48 101 51 119 50 225 195 78 29.5 325 14 280 130 7 20 48 207 87 180 84 205 96 213 75 9 242106 210 87 230 105 265 105 25 117 134 60 355 122 145 225 87 227 116

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