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In a certain type of metal test specimen. the effect of normal stress on a specimen is known to be functionally related to shear resistance. The following table gives the data on the two variables.
Normal stress |
26 |
25 |
28 |
23 |
27 |
23 |
24 |
28 |
26 |
Shear Stress |
22 |
27 |
24 |
27 |
23 |
25 |
26 |
22 |
21 |
- Identify which one is response variable, and fit a simple regression line, assuming that the relationship between them is linear.
- Interpret the regression coefficient with reference to your problem.
- Obtain the coefficient of determination, and interpret this.
- Based on the fitted model in (a), predict the shear resistance for normal stress of 30 kilogram per square centimeter .
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