In a study of the relationship between the Brinell hardness (x) and tensile strength in ksi (y)
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In a study of the relationship between the Brinell hardness (x) and tensile strength in ksi (y) of specimens of cold drawn copper, the least-squares line was y = −196.32 + 2.42x.
a. Predict the tensile strength of a specimen whose Brinell hardness is 102.7.
b. If two specimens differ in their Brinell hardness by 3, by how much do you predict their tensile strengths to differ?
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a 19632 2421027 5221 ksi b The difference i...View the full answer
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