Q2-B

In a certain type of metal specimen, the normal stress on a specimen is known to be functionally related to the shear resistance. Table Q2(b) is the output summary obtained from Excel.

(b) In a certain type of metal specimen, the normal stress on a specimen is known to be functionally related to the shear resistance. Table Q2(b) is the output summary obtained from Excel. Table Q2(b): Output Summary Regression Statistics Multiple R R Square 0.4298 Adjusted R Square 0.3727 Standard Error 1.6397 Observations 12 Standard Coefficients Error 1 Star P-value Intercept 42.5818 6.5065 6.5445 0.0001 X Variable -0.6861 0.2499 -2.7453 0.0206 Write down the regression line and interpret the results. [3 marks] (ii) Find and interpret the value of d and coefficient of determination. [4 marks]