Question

In: Statistics and Probability

The following table presents shear strengths (in kN/mm) and weld diameters (in mm) for a sample...

The following table presents shear strengths (in kN/mm) and weld diameters (in mm) for a sample of spot welds.

Diameter

Strength

4.2

47

4.4

54

4.6

69

4.8

81

5.0

75

5.2

79

5.4

89

5.6

101

5.8

98

6.0

102

Compute the fitted value and the residual for each point.

Solutions

Expert Solution

The answer is:

Observation Predicted Strength Residuals
1 52.47272727 -5.472727273
2 58.47878788 -4.478787879
3 64.48484848 4.515151515
4 70.49090909 10.50909091
5 76.4969697 -1.496969697
6 82.5030303 -3.503030303
7 88.50909091 0.490909091
8 94.51515152 6.484848485
9 100.5212121 -2.521212121
10 106.5272727 -4.527272727


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