Using an Instron 4204, rectangular strips of Plexiglas_

Chapter 6, Problem 9E

(choose chapter or problem)

Using an Instron 4204, rectangular strips of Plexiglas® were stretched to failure in a tensile test. The following data give the change in length, in millimeters \((\mathrm{mm})\), before breaking \((x)\) and the cross–sectional area in square millimeters \(\left(m m^{2}\right)(y)\):

(5.28, 52.36)         (5.40, 52.58)        (4.65, 51.07)         (4.76, 52.28)         (5.55, 53.02)

(5.73, 52.10)        (5.84, 52.61)         (4.97, 52.21)         (5.50, 52.39)          (6.24, 53.77)

(a) Find the equation of the least squares regression line.

(b) Plot the points and the line on the same graph.

(c) Interpret your output.

Equation Transcription:

Text Transcription:

(mm)  

(x)  

(mm^2)  

(y)