In fatigue studies a parabola of the Gerber type Is useful (see Sec. 6-12). Solved for a
Question:
Is useful (see Sec. 6-12). Solved for a the preceding equation becomes
This implies a regression model of the form y = a0 + a2x2. Show that the normal equations are
And that
Plot the data
Superposed on a plot of the regression line.
Transcribed Image Text:
Se Σ.ry=ao Σ.r+a2 ΣΧ3 ao =ーが3.rm2 20 40 60 80 19 17 13 7
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