The determination of the shear strength of spot welds is relatively difficult, whereas measuring he weld diameter of spot welds is relatively simple. As a result, it would be advantageous if shear strength could be predicted from a measurement of weld diameter. The data are as follows: Shear Strength (psi) Weld Diameter (.0001 in.) 370 780 1,210 1,560 1,980 2,450 3,070 3,550 3,940 3,950 400 800 1,250 1,600 2,000 2,500 3,100 3,600 4,000 4,000 a) Find the least squares estimates of the regression coefficients. b) Test the hypothesis that the slope of the regression line is equal to 1 at the 0.05 level of significance.

The determination of the shear strength of spot welds is relatively difficult, whereas measuring he weld diameter of spot welds is relatively simple. As a result, it would be advantageous if shear strength could be predicted from a measurement of weld diameter. The data are as follows: Shear Strength (psi) Weld Diameter (.0001 in.) 370 780 1,210 1,560 1,980 2,450 3,070 3,550 3,940 3,950 400 800 1,250 1,600 2,000 2,500 3,100 3,600 4,000 4,000 a) Find the least squares estimates of the regression coefficients. b) Test the hypothesis that the slope of the regression line is equal to 1 at the 0.05 level of significance.

Name: Data typed out for convenience:Shear strength (psi)Weld diameter (0.00
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Data typed out for convenience:Shear strength (psi)Weld diameter (0.0001 in)3704007808001210125015601600198020002450250030703100355036003940400039504000 The determination of the shear strength of spot welds is relatively difficult, whereas measuringt